-5x^2-30x+135=0

Simple and best practice solution for -5x^2-30x+135=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^2-30x+135=0 equation:


Simplifying
-5x2 + -30x + 135 = 0

Reorder the terms:
135 + -30x + -5x2 = 0

Solving
135 + -30x + -5x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(27 + -6x + -1x2) = 0

Factor a trinomial.
5((3 + -1x)(9 + x)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 2

Set the factor '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 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 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9

Solution

x = {3, -9}

See similar equations:

| -3(t-4)5y=4t-9 | | 4(x-23)+3(-2)=2 | | 2+x^2=-2 | | x^2=-3x+4 | | 19n-1+2n+7=111 | | x^2-3.2-6.44=0 | | x^2-8.4x-151.36=0 | | -2=-4y+16 | | 9X+13=76 | | 12n+5+3n-1=49 | | x^2-26x-10.2=0 | | 2n-4=8n+4 | | -8y+5=4y-15 | | 5y=-1+10x | | 9p+10=8p-7 | | x^2-10x-3.4=0 | | A-14=185 | | -5y=-8x+12 | | 2n+8=7n-5 | | 7.2+5.3*x=x+73.2 | | 4x+1=45 | | (5)(9)(8+c)=-20 | | 5a+4=-6a+-10 | | 3-(2+4n)=4+2(3n+1) | | 5a+4=-6a+10 | | 6k-7=9k | | 5a+4=6a-10 | | 4(3y-1)=2y-24 | | 6n-2n+10-4=26 | | -4(5x+3)=28 | | 7n+2=4n | | 3x+7y=-9 |

Equations solver categories