-8x^2+20x+28=0

Simple and best practice solution for -8x^2+20x+28=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 -8x^2+20x+28=0 equation:


Simplifying
-8x2 + 20x + 28 = 0

Reorder the terms:
28 + 20x + -8x2 = 0

Solving
28 + 20x + -8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(7 + 5x + -2x2) = 0

Factor a trinomial.
4((7 + -2x)(1 + x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5

Subproblem 2

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

Solution

x = {3.5, -1}

See similar equations:

| 80=23-3t | | 9n=8n+21 | | g+106=-4g-9 | | 3j+7=17 | | dc+ed=m | | y=5(-2)+3 | | m^4-16m^2+63=0 | | 5x+2=-1+4x | | P+9-4=58 | | 2x+42=-6x+18 | | 18-(-12)+(-8)= | | y=10(5)-1 | | d-3=-11 | | 8/42 | | y=10(1)-1 | | 1x2+3-4/2 | | 23+X=-85 | | 0=-16t^2+20t-4 | | y=10(0)-1 | | 5x+18=-4x+36 | | y=10(-1)-1 | | 5y-15=9y-19 | | y=10(-1)x-1 | | 16+3x=37 | | n/9=-5 | | 36-44+(-15)= | | 0=-16t^2-16t+60 | | y=-3(3)+3 | | 352/16=x-22 | | x+(5x-28)=180 | | y=-3(-3)+3 | | y(2y+3)=0 |

Equations solver categories