4x^2-16x-20=28

Simple and best practice solution for 4x^2-16x-20=28 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^2-16x-20=28 equation:


Simplifying
4x2 + -16x + -20 = 28

Reorder the terms:
-20 + -16x + 4x2 = 28

Solving
-20 + -16x + 4x2 = 28

Solving for variable 'x'.

Reorder the terms:
-20 + -28 + -16x + 4x2 = 28 + -28

Combine like terms: -20 + -28 = -48
-48 + -16x + 4x2 = 28 + -28

Combine like terms: 28 + -28 = 0
-48 + -16x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-12 + -4x + x2) = 0

Factor a trinomial.
4((-2 + -1x)(6 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-2, 6}

See similar equations:

| x^2-2x=x+4 | | z-12=8 | | 8x^2=2x-10 | | 6f-g=3 | | 7=3+z | | 6n+7+3n=13 | | -111-8x=18x+15 | | 7+4x=16-x | | 3x-16x | | 2v/3-4=11/4-2v | | 5(x+1)-x=5+8(x-2) | | l=4l+24 | | 11-10x=161-45x | | 6I+11=74-I | | ln(7x)=2ln(8x) | | 35+(-25)=155 | | 35(42)= | | 5p-8=3p-7 | | 4x^2=17 | | 5p-8=5p-7 | | 5p+3q=43 | | X=e^64-e^0 | | 14-7x=92-21x | | 2(r+9)=2(4r-9) | | -3(-2b+11)-12=b-10(12b-8) | | -2b-5(-3b-10)=-5(-7b-10) | | 10(9+9n)=-7n+8(1+7n) | | 6(5+9x)=4x-12(1-3x) | | -11(n-11)=-4-7(n-11) | | 4x-4=3(2x-1) | | 7(x+5)-4=12(x-7) | | 5(-3+3n)=10(n+2) |

Equations solver categories