-x-5x+(-3x^2)-9-2x+7=0

Simple and best practice solution for -x-5x+(-3x^2)-9-2x+7=0 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 -x-5x+(-3x^2)-9-2x+7=0 equation:


Simplifying
-1x + -5x + (-3x2) + -9 + -2x + 7 = 0

Reorder the terms:
-9 + 7 + -1x + -5x + -2x + (-3x2) = 0

Combine like terms: -9 + 7 = -2
-2 + -1x + -5x + -2x + (-3x2) = 0

Combine like terms: -1x + -5x = -6x
-2 + -6x + -2x + (-3x2) = 0

Combine like terms: -6x + -2x = -8x
-2 + -8x + (-3x2) = 0

Solving
-2 + -8x + (-3x2) = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(2 + 8x + (3x2)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(2 + 8x + (3x2))' equal to zero and attempt to solve: Simplifying 2 + 8x + (3x2) = 0 Solving 2 + 8x + (3x2) = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 0.6666666667 + 2.666666667x + x2 = 0 Move the constant term to the right: Add '-0.6666666667' to each side of the equation. 0.6666666667 + 2.666666667x + -0.6666666667 + x2 = 0 + -0.6666666667 Reorder the terms: 0.6666666667 + -0.6666666667 + 2.666666667x + x2 = 0 + -0.6666666667 Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000 0.0000000000 + 2.666666667x + x2 = 0 + -0.6666666667 2.666666667x + x2 = 0 + -0.6666666667 Combine like terms: 0 + -0.6666666667 = -0.6666666667 2.666666667x + x2 = -0.6666666667 The x term is 2.666666667x. Take half its coefficient (1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. 2.666666667x + 1.777777780 + x2 = -0.6666666667 + 1.777777780 Reorder the terms: 1.777777780 + 2.666666667x + x2 = -0.6666666667 + 1.777777780 Combine like terms: -0.6666666667 + 1.777777780 = 1.1111111133 1.777777780 + 2.666666667x + x2 = 1.1111111133 Factor a perfect square on the left side: ((x) + 1.333333334)((x) + 1.333333334) = 1.1111111133 Calculate the square root of the right side: 1.054092554 Break this problem into two subproblems by setting ((x) + 1.333333334) equal to 1.054092554 and -1.054092554.

Subproblem 1

(x) + 1.333333334 = 1.054092554 Simplifying (x) + 1.333333334 = 1.054092554 x + 1.333333334 = 1.054092554 Reorder the terms: 1.333333334 + x = 1.054092554 Solving 1.333333334 + x = 1.054092554 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 1.054092554 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 1.054092554 + -1.333333334 x = 1.054092554 + -1.333333334 Combine like terms: 1.054092554 + -1.333333334 = -0.27924078 x = -0.27924078 Simplifying x = -0.27924078

Subproblem 2

(x) + 1.333333334 = -1.054092554 Simplifying (x) + 1.333333334 = -1.054092554 x + 1.333333334 = -1.054092554 Reorder the terms: 1.333333334 + x = -1.054092554 Solving 1.333333334 + x = -1.054092554 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -1.054092554 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -1.054092554 + -1.333333334 x = -1.054092554 + -1.333333334 Combine like terms: -1.054092554 + -1.333333334 = -2.387425888 x = -2.387425888 Simplifying x = -2.387425888

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.27924078, -2.387425888}

Solution

x = {-0.27924078, -2.387425888}

See similar equations:

| 5w^2-35w+60=0 | | n-10=65 | | 3d^2+24d+45=0 | | 114-7x=29x+18 | | 3x-4=95 | | a+20=143 | | (2x-8)(5x+5)= | | x^2-5x=18+2x | | (P+9)(2p-1)= | | 12-10x=21-17x | | 6(x-9)=4(x+5) | | (2+3x)(3+4x)(4+5x)-2(1+2x)(3+4x)(4+5x)+3(1+2x)(2+3x)(4+5x)-4(1+2x)(2+3x)(3+4x)= | | b+18=46 | | 1(4)(5)+8(1)(7)= | | n-2=103 | | 15x^2-7x-4= | | 2x+1+3x-8=x-3 | | n+12=45 | | 2x+x=39 | | -17(1)(6)= | | u^2-34u+102=0 | | x-6.6=-1.8 | | y=-5x^2+15x+50 | | x-19=30 | | 15x^2-14x-8= | | n+13=22 | | a^2-34a+102=0 | | 20x^2-7x-6= | | (8x-x)-(7x+3x)= | | 12x-1=23 | | 2x+7=44 | | a^2-34a+96=0 |

Equations solver categories