15x^2+2x-45=0

Simple and best practice solution for 15x^2+2x-45=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 15x^2+2x-45=0 equation:


Simplifying
15x2 + 2x + -45 = 0

Reorder the terms:
-45 + 2x + 15x2 = 0

Solving
-45 + 2x + 15x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(-9 + -5x)' equal to zero and attempt to solve: Simplifying -9 + -5x = 0 Solving -9 + -5x = 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 + -5x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -5x = 0 + 9 -5x = 0 + 9 Combine like terms: 0 + 9 = 9 -5x = 9 Divide each side by '-5'. x = -1.8 Simplifying x = -1.8

Subproblem 2

Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 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 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Solution

x = {-1.8, 1.666666667}

See similar equations:

| 0.5t=5 | | -5=x/-1 | | 2(3x-1)=8x-8 | | 5g=2 | | 10x-11x+1=0 | | 16k=400 | | 4(2c+8)=5(c+5) | | -5k=7 | | https://www.vle.mathswatch.com/images/questions/question8811.png | | 4(8-2x)=2(7-x) | | 11x-40=180 | | (25b-4)-6(4b+4)=-4 | | 18=-4u+2(u+7) | | 5-3(2)= | | 2(3X-1)=4(X-1) | | 56+9m=182 | | -5w+3(w-4)=-30 | | 2(5X-9)=4X | | 23n-42=119 | | 3(2X+1)=7X-2 | | 36+19m=340 | | 12-3v=v | | =0.11111111111 | | x+(x*.1)=750 | | 35n-108=207 | | 13v=35+6v | | 19-x^2=1 | | 7+6n-n=-13 | | y-2=3x-15 | | 2x+100+8x-10=180 | | 8(5s-2)-9(2s+7)=200s-969 | | 4(2x+3)+5x+7= |

Equations solver categories