4x^2+6=300-3x

Simple and best practice solution for 4x^2+6=300-3x 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 4x^2+6=300-3x equation:


Simplifying
4x2 + 6 = 300 + -3x

Reorder the terms:
6 + 4x2 = 300 + -3x

Solving
6 + 4x2 = 300 + -3x

Solving for variable 'x'.

Reorder the terms:
6 + -300 + 3x + 4x2 = 300 + -3x + -300 + 3x

Combine like terms: 6 + -300 = -294
-294 + 3x + 4x2 = 300 + -3x + -300 + 3x

Reorder the terms:
-294 + 3x + 4x2 = 300 + -300 + -3x + 3x

Combine like terms: 300 + -300 = 0
-294 + 3x + 4x2 = 0 + -3x + 3x
-294 + 3x + 4x2 = -3x + 3x

Combine like terms: -3x + 3x = 0
-294 + 3x + 4x2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
-73.5 + 0.75x + x2 = 0

Move the constant term to the right:

Add '73.5' to each side of the equation.
-73.5 + 0.75x + 73.5 + x2 = 0 + 73.5

Reorder the terms:
-73.5 + 73.5 + 0.75x + x2 = 0 + 73.5

Combine like terms: -73.5 + 73.5 = 0.0
0.0 + 0.75x + x2 = 0 + 73.5
0.75x + x2 = 0 + 73.5

Combine like terms: 0 + 73.5 = 73.5
0.75x + x2 = 73.5

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = 73.5 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 73.5 + 0.140625

Combine like terms: 73.5 + 0.140625 = 73.640625
0.140625 + 0.75x + x2 = 73.640625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 73.640625

Calculate the square root of the right side: 8.581411597

Break this problem into two subproblems by setting 
(x + 0.375) equal to 8.581411597 and -8.581411597.

Subproblem 1

x + 0.375 = 8.581411597 Simplifying x + 0.375 = 8.581411597 Reorder the terms: 0.375 + x = 8.581411597 Solving 0.375 + x = 8.581411597 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = 8.581411597 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 8.581411597 + -0.375 x = 8.581411597 + -0.375 Combine like terms: 8.581411597 + -0.375 = 8.206411597 x = 8.206411597 Simplifying x = 8.206411597

Subproblem 2

x + 0.375 = -8.581411597 Simplifying x + 0.375 = -8.581411597 Reorder the terms: 0.375 + x = -8.581411597 Solving 0.375 + x = -8.581411597 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = -8.581411597 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -8.581411597 + -0.375 x = -8.581411597 + -0.375 Combine like terms: -8.581411597 + -0.375 = -8.956411597 x = -8.956411597 Simplifying x = -8.956411597

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.206411597, -8.956411597}

See similar equations:

| -5y=-1 | | (9a-2a)+6=27 | | -3x/-3=1/-3 | | 7n-21-2n-8=2n-9 | | 24=-0.2x+50 | | 8y/y | | -7x+8+5x=32 | | 9a+4b=55 | | 2/x+6+1/x-3=1 | | x=y-(y*.05) | | 180=(10/3)x | | 5x+4+6x=4 | | 1/2(6x-2)-7=4+3/5x | | 4-(4*5)+3=-19 | | x-1/3=25 | | 11=3+15t-5t^2 | | 59=-13-4n | | 4-4*5+3=19 | | 4-4*5-3=19 | | 6m+1+4m-4= | | 4(5n-8)=48 | | F(x)=x^5-8x^4+16x^3-10 | | -9(k+9)-3(5-11k)=-14k-10k | | 4x-36=x | | 2880=1/3*15*x^2 | | 9+3x-5x=1 | | (X-4)1/2=X-6 | | 5x[(11-3)-(13-90)]= | | 15+x=2(x+3) | | F(x)=x^3(x^2-8x-16)-10 | | 70=70-4t-16t^2 | | F(x)=x^3(x^2-8x-15)-10 |

Equations solver categories