-4x^2+4x+15=

Simple and best practice solution for -4x^2+4x+15= 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 -4x^2+4x+15= equation:


Simplifying
-4x2 + 4x + 15 = 0

Reorder the terms:
15 + 4x + -4x2 = 0

Solving
15 + 4x + -4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(5 + -2x)(3 + 2x) = 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 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Solution

x = {2.5, -1.5}

See similar equations:

| x^3+7x^2-8=0 | | 3y-17=-2 | | 2x-4*(7x-5)=0 | | 2/3=4j/5 | | 55+4-72= | | x^2+x-46=0 | | 3+3c=36 | | -4x^2+8x= | | 3a-11=3 | | 6*(4x-3)+18=48 | | 2(30)-70+x/2=6x | | -8x^2+4x^2= | | 60-70+x/2=6x | | 8x^2+4x^2= | | x^3+x^2+2x=0 | | S=.5gt^2 | | (4x^2+30x+40)/(x+6) | | 50+63s-5=2 | | x/(x^2-9)+2/(x+3)=4/(x-3) | | x-1+lnx=0 | | (d*d*d)+3(d*d)+3d-1=0 | | 10-y=-8 | | (d*d*d)-3(d*d)*3d-1=0 | | (d*d*d)+3(d*d)*3d-1=0 | | 9(x*2)=45 | | x+18-36+4=x | | (50x^3+20x^2+x)/10 | | m-2(m-5)=-10m-(2-3m) | | 4x^3-6x^2+2x-3=0 | | -8/9y=8 | | 11x+13=17x+1 | | 9x^3+4x-8x^3-5x= |

Equations solver categories