-15x^2-21x+18=

Simple and best practice solution for -15x^2-21x+18= 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 -15x^2-21x+18= equation:


Simplifying
-15x2 + -21x + 18 = 0

Reorder the terms:
18 + -21x + -15x2 = 0

Solving
18 + -21x + -15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(6 + -7x + -5x2) = 0

Factor a trinomial.
3((3 + -5x)(2 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(3 + -5x)' equal to zero and attempt to solve: Simplifying 3 + -5x = 0 Solving 3 + -5x = 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 + -5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5x = 0 + -3 -5x = 0 + -3 Combine like terms: 0 + -3 = -3 -5x = -3 Divide each side by '-5'. x = 0.6 Simplifying x = 0.6

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {0.6, -2}

See similar equations:

| -3x(-4)=(-7+-5)+12 | | 6.6-2=5.6x | | Y+2x=16fory | | 3(4x-3)=2x+21 | | 6y-12=-4y+18 | | 6x=12-9 | | 8+3n=2 | | 1=2f-1 | | 8+3=2 | | 4+20=5 | | 5x+3+7x= | | 6x+1(x-2)=34 | | (u+7)(u-4)= | | 3x+5-x+3=12 | | 2y/2x^3y^2•(x^0)^0 | | 7x+16=13x-8 | | (4x+2)+(-2x-1)+(6x+8)=180 | | 6.00=-log(x) | | .18-.03(x+3)=-.02(3-x) | | 22=2+6x | | -9*y=27 | | 6(3x-5)-3(x+1)-19x= | | 87+13x+2=180 | | x*1.12=145000000 | | -2+3y=13 | | 8x-10+x+7+4x+1=180 | | -17-r=-8 | | 44=n-(-24) | | -12.532+4.7b=-4.1(-4.4b-2.8) | | 51x+96y=3 | | 27=17-k | | 8+5(3z-1)= |

Equations solver categories