5x^2+20x-225=0

Simple and best practice solution for 5x^2+20x-225=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 5x^2+20x-225=0 equation:


Simplifying
5x2 + 20x + -225 = 0

Reorder the terms:
-225 + 20x + 5x2 = 0

Solving
-225 + 20x + 5x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-45 + 4x + x2) = 0

Factor a trinomial.
5((-9 + -1x)(5 + -1x)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9

Subproblem 2

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

Solution

x = {-9, 5}

See similar equations:

| 6(3+5x)-3=165 | | a^2+10/7a+25/49=0 | | n+3/4=12 | | X/4=175/20 | | 18=-3x+21 | | 8+(6+2)/4 | | 3y(y+1)(y-3)=0 | | 1y+4+3y-5+2y= | | 12m=-48 | | (4z-6)(3+z)=0 | | p=2x+35 | | p=2x+35forx | | 9-5a=16 | | .2x(x)=.45 | | m/18=-1/9 | | q+23=23 | | 3.2=t/8 | | 16+7y-8= | | 9/20=(x)1/5x | | -25/17=-35/34a | | 3t+5=17 | | -8(t+3)=24 | | -18=x+11 | | -17=m+18 | | m^2+2m+48=-6 | | -48/16 | | 72=1+44 | | 0/27 | | m+1/2=2m-1/3 | | 3z^2-12z+9=1296 | | 96=4(7x-4) | | 1.5+2.25+h=11.25 |

Equations solver categories