2x*x-x-15=0

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


Simplifying
2x * x + -1x + -15 = 0

Multiply x * x
2x2 + -1x + -15 = 0

Reorder the terms:
-15 + -1x + 2x2 = 0

Solving
-15 + -1x + 2x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

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

Solution

x = {-2.5, 3}

See similar equations:

| 8+3u=23 | | 5n+12-9n=-6 | | -5(r-6)=-2(-4) | | -10=2u+2 | | 4-4b=7 | | X^2+14+3=0 | | 4(6x-4x)+4x=96 | | 8x+6-5x=2x-10 | | 12.4y+6=6(2.2y+1) | | 19=4+3w | | -0.25x+6=.66x+28 | | sec^4x-sec^2x=0 | | 19-3p=-17p-11 | | -5+4u=-19 | | 8-13=x-2+6 | | 6(a+3)=21-31(1-2a) | | 44323+32413413= | | 21=b+20 | | -y=1.5 | | 4y=16x-8 | | 10+2y=4x | | 57+32+x=70 | | y=1500-63x | | 57+32+x=80 | | y=1500-6x | | -22=n-7 | | -20+-4-x+15=-15 | | -32=-15+n | | 4y=3x-2 | | 2x^5+9x-35=0 | | 7+6x=-5 | | 4(6x-4x)4x=96 |

Equations solver categories