4x^2+4x-80=0

Simple and best practice solution for 4x^2+4x-80=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 4x^2+4x-80=0 equation:


Simplifying
4x2 + 4x + -80 = 0

Reorder the terms:
-80 + 4x + 4x2 = 0

Solving
-80 + 4x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-20 + x + x2) = 0

Factor a trinomial.
4((-5 + -1x)(4 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-5, 4}

See similar equations:

| -12X^2-5X-2= | | -3=3(d-9) | | (4x^3+4x^2-3c)(x^2-5)=0 | | 5a^2-31a=28 | | 7x^2+35x-98=0 | | -17r+r-4=-20 | | 3s+2s=20 | | -(6y+3)-(-5y-4)=-7 | | 9z-7z-2=14 | | -2x^3-6x^2+20x=0 | | -2r^2+2r+12=0 | | p^2-1.2p+0.36=0 | | 192=4x(x+2) | | 4x^2=91 | | -2x^2+8x-6=0 | | 3x(2x+1)(2x+5)=0 | | 11-17x-10x^2= | | -8n+15=4n-7 | | -6y+6=-2(4y+1) | | 4(m-6)=2m | | x^2-7x+18=0 | | .4x+6=.02x+.01 | | y=2x^2-5 | | 1.2a+2.1a=3(.1a+4) | | (a+6)(a^2-8a+8)=a^3-2a^2-40a+48 | | x+174=348 | | -(4t-5)=0 | | 3(k+3)=2k-12 | | 70-8(5-2)+4= | | -70-2.25x=-250 | | c^2+8c=0 | | (a+6)(a^2-8a+8)= |

Equations solver categories