-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 + -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 + x) = 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 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {2.5, -3}

See similar equations:

| (x^4)-(8x^3)+(19x^2)-(24x)+(48)=0 | | 1+.2y=7 | | 3x+y+6=0 | | (x)*4-(8x^3)+(19x^2)-(24x)+(48)=0 | | (2x^3)+(3x^2)+(2x)+3=0 | | .17(6)+.14y=7 | | 12x+3x-6=10x+4 | | .16(6)+.14y=7 | | (2x)*3+(3x)*2+(2x)+3=0 | | 5300=200x+1700 | | 14x=x+160 | | s=100(14)+1500 | | s=100(13)+1500 | | s=100(12)+1500 | | s=100(10)+1500 | | t^2-6t=11 | | y=.75(20)+12 | | y=.75(14)+12 | | M^3+5m^2-9m-45=0 | | y=.75(9)+12 | | y=.75(5)+12 | | y=.75(3)+12 | | (6x^2-4x+7)+(2x^2-3x-9)= | | y=9(-9)+85 | | 2,085,000,000+5,550,000x=2,500,000,000 | | X^3-3x^2-13x+100=0 | | X^3-3x^2-13x+30=0 | | 12x-11=4x+9 | | y=6(.17)-9 | | y=6(.16)-9 | | 6-2y=-4 | | 2(4x-3)-x=4x-5 |

Equations solver categories