4x(x+6)=40

Simple and best practice solution for 4x(x+6)=40 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(x+6)=40 equation:


Simplifying
4x(x + 6) = 40

Reorder the terms:
4x(6 + x) = 40
(6 * 4x + x * 4x) = 40
(24x + 4x2) = 40

Solving
24x + 4x2 = 40

Solving for variable 'x'.

Reorder the terms:
-40 + 24x + 4x2 = 40 + -40

Combine like terms: 40 + -40 = 0
-40 + 24x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-10 + 6x + x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-10 + 6x + x2)' equal to zero and attempt to solve: Simplifying -10 + 6x + x2 = 0 Solving -10 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + 6x + 10 + x2 = 0 + 10 Reorder the terms: -10 + 10 + 6x + x2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + 6x + x2 = 0 + 10 6x + x2 = 0 + 10 Combine like terms: 0 + 10 = 10 6x + x2 = 10 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = 10 + 9 Reorder the terms: 9 + 6x + x2 = 10 + 9 Combine like terms: 10 + 9 = 19 9 + 6x + x2 = 19 Factor a perfect square on the left side: (x + 3)(x + 3) = 19 Calculate the square root of the right side: 4.358898944 Break this problem into two subproblems by setting (x + 3) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 3 = 4.358898944 Simplifying x + 3 = 4.358898944 Reorder the terms: 3 + x = 4.358898944 Solving 3 + x = 4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 4.358898944 + -3 Combine like terms: 3 + -3 = 0 0 + x = 4.358898944 + -3 x = 4.358898944 + -3 Combine like terms: 4.358898944 + -3 = 1.358898944 x = 1.358898944 Simplifying x = 1.358898944

Subproblem 2

x + 3 = -4.358898944 Simplifying x + 3 = -4.358898944 Reorder the terms: 3 + x = -4.358898944 Solving 3 + x = -4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -4.358898944 + -3 Combine like terms: 3 + -3 = 0 0 + x = -4.358898944 + -3 x = -4.358898944 + -3 Combine like terms: -4.358898944 + -3 = -7.358898944 x = -7.358898944 Simplifying x = -7.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.358898944, -7.358898944}

Solution

x = {1.358898944, -7.358898944}

See similar equations:

| 25=5x+5.50 | | 50=12-2b | | q=m2/3 | | 13x-21=4(2x-4)+5x-5 | | q=m^2y/3 | | 50=5*2.50r | | sin(X)=0.32 | | -4(7x-4)+8=-28x+24 | | 11x+5-8x=7x+12-6x | | m-3/-4=-1 | | 6x+5=6(x+2) | | 2/7=y-2/5 | | 2=s/4*11 | | -8m+m+6=62 | | 2=s/44 | | 3+10=100 | | 14r^(5/7)=25 | | 7(6-4k)+20=-50 | | -21-8x+11x=47 | | -54=-6(x+8) | | 7(7c-12)=-21 | | 6=-3(g-3) | | -4=2(n-5) | | -31+8x-12x=41 | | -3a+6+8a=9a-7a | | -2(x/5-1)=4 | | 4(2x-3)+5x=9(x-2)+8 | | 7y+3y=9y-6 | | -2y+3(4-y)=12-5 | | (3x-7)(3x+12)= | | 2x^2+2x-10=2 | | d^2+8=0 |

Equations solver categories