(6x^3-7x^2+2x)+(8x^3+9x^2-11x)=

Simple and best practice solution for (6x^3-7x^2+2x)+(8x^3+9x^2-11x)= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (6x^3-7x^2+2x)+(8x^3+9x^2-11x)= equation:


Simplifying
(6x3 + -7x2 + 2x) + (8x3 + 9x2 + -11x) = 0

Reorder the terms:
(2x + -7x2 + 6x3) + (8x3 + 9x2 + -11x) = 0

Remove parenthesis around (2x + -7x2 + 6x3)
2x + -7x2 + 6x3 + (8x3 + 9x2 + -11x) = 0

Reorder the terms:
2x + -7x2 + 6x3 + (-11x + 9x2 + 8x3) = 0

Remove parenthesis around (-11x + 9x2 + 8x3)
2x + -7x2 + 6x3 + -11x + 9x2 + 8x3 = 0

Reorder the terms:
2x + -11x + -7x2 + 9x2 + 6x3 + 8x3 = 0

Combine like terms: 2x + -11x = -9x
-9x + -7x2 + 9x2 + 6x3 + 8x3 = 0

Combine like terms: -7x2 + 9x2 = 2x2
-9x + 2x2 + 6x3 + 8x3 = 0

Combine like terms: 6x3 + 8x3 = 14x3
-9x + 2x2 + 14x3 = 0

Solving
-9x + 2x2 + 14x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-9 + 2x + 14x2) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-9 + 2x + 14x2)' equal to zero and attempt to solve: Simplifying -9 + 2x + 14x2 = 0 Solving -9 + 2x + 14x2 = 0 Begin completing the square. Divide all terms by 14 the coefficient of the squared term: Divide each side by '14'. -0.6428571429 + 0.1428571429x + x2 = 0 Move the constant term to the right: Add '0.6428571429' to each side of the equation. -0.6428571429 + 0.1428571429x + 0.6428571429 + x2 = 0 + 0.6428571429 Reorder the terms: -0.6428571429 + 0.6428571429 + 0.1428571429x + x2 = 0 + 0.6428571429 Combine like terms: -0.6428571429 + 0.6428571429 = 0.0000000000 0.0000000000 + 0.1428571429x + x2 = 0 + 0.6428571429 0.1428571429x + x2 = 0 + 0.6428571429 Combine like terms: 0 + 0.6428571429 = 0.6428571429 0.1428571429x + x2 = 0.6428571429 The x term is 0.1428571429x. Take half its coefficient (0.07142857145). Square it (0.005102040819) and add it to both sides. Add '0.005102040819' to each side of the equation. 0.1428571429x + 0.005102040819 + x2 = 0.6428571429 + 0.005102040819 Reorder the terms: 0.005102040819 + 0.1428571429x + x2 = 0.6428571429 + 0.005102040819 Combine like terms: 0.6428571429 + 0.005102040819 = 0.647959183719 0.005102040819 + 0.1428571429x + x2 = 0.647959183719 Factor a perfect square on the left side: (x + 0.07142857145)(x + 0.07142857145) = 0.647959183719 Calculate the square root of the right side: 0.804959119 Break this problem into two subproblems by setting (x + 0.07142857145) equal to 0.804959119 and -0.804959119.

Subproblem 1

x + 0.07142857145 = 0.804959119 Simplifying x + 0.07142857145 = 0.804959119 Reorder the terms: 0.07142857145 + x = 0.804959119 Solving 0.07142857145 + x = 0.804959119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.07142857145' to each side of the equation. 0.07142857145 + -0.07142857145 + x = 0.804959119 + -0.07142857145 Combine like terms: 0.07142857145 + -0.07142857145 = 0.00000000000 0.00000000000 + x = 0.804959119 + -0.07142857145 x = 0.804959119 + -0.07142857145 Combine like terms: 0.804959119 + -0.07142857145 = 0.73353054755 x = 0.73353054755 Simplifying x = 0.73353054755

Subproblem 2

x + 0.07142857145 = -0.804959119 Simplifying x + 0.07142857145 = -0.804959119 Reorder the terms: 0.07142857145 + x = -0.804959119 Solving 0.07142857145 + x = -0.804959119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.07142857145' to each side of the equation. 0.07142857145 + -0.07142857145 + x = -0.804959119 + -0.07142857145 Combine like terms: 0.07142857145 + -0.07142857145 = 0.00000000000 0.00000000000 + x = -0.804959119 + -0.07142857145 x = -0.804959119 + -0.07142857145 Combine like terms: -0.804959119 + -0.07142857145 = -0.87638769045 x = -0.87638769045 Simplifying x = -0.87638769045

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.73353054755, -0.87638769045}

Solution

x = {0, 0.73353054755, -0.87638769045}

See similar equations:

| -9z+19z-12z-10=16 | | 240=2l+70 | | 35h^2-37hj-6j^2= | | 19-25= | | 5y+1.8=4y-32 | | -1-9y= | | x-9y=-1 | | -2x^2=-3x-20 | | 5.4a+8.2=a-2.8 | | 19+x=21 | | 9a^2+12a+4=0 | | t^2+8t+1=0 | | y=24x-45 | | 2s(5s+3)=0 | | 6x+11=6x+9 | | y=(-3+1)(-3+1)-12 | | b=.5gv | | x(x+3)=270 | | 9v^3=144v | | 11xy+5+2xy+6= | | -24x+6y=-12 | | (x^2+10x+25)+3=(x^2-4x+4) | | 2-3x+12=8 | | z+4/7+z/6=z+8/3+5 | | -3(4y-4)=3(1-5y)+11 | | 7=x+0.33x | | 1=0.5(4x+2) | | 14=w(w-5) | | 2(4a-5)=14 | | 6p-75=4p+25 | | .5x+5=12 | | 4(n-3)= |

Equations solver categories