2x^2+x-15=0

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


Simplifying
2x2 + x + -15 = 0

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

Solving
-15 + x + 2x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -1x)(5 + -2x) = 0

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 '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 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 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Solution

x = {-3, 2.5}

See similar equations:

| 7x-7=63 | | -28x^2-36x-8=0 | | X^2-27=4x | | 3x+5=-5x-2 | | y=0.03y | | 0.2x+3=18 | | 9x^2+6x+5=0 | | 10-y=3-6(y-2) | | 0.6x+9=36 | | 3x+5=5x+2 | | x^5-2=62 | | -40x^2+28x-4=0 | | .25x^2-1.5x-1.75=0 | | 67=0+33 | | x^2-7x+0=0 | | 17-5-m=6 | | 14+3=r+3 | | x^2-7x-60=0 | | 37=y-29 | | x^2-7x+60=0 | | x^2-4x-96=0 | | (3t+1)(-1+t)=1 | | x^2-16x+60=0 | | 0.9x+2.3x=-6.4 | | 0.7c-10=0.5 | | 15m+4-m=-32 | | y=2*0+1 | | x^2+8x+0=0 | | y=2*-1+1 | | 3(5x+2)+4(3x+5)=0 | | y=2*-2+1 | | 8y-7=-12y+2 |

Equations solver categories