4x^2-4x-15=0

Simple and best practice solution for 4x^2-4x-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 4x^2-4x-15=0 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.
(-3 + -2x)(5 + -2x) = 0

Subproblem 1

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

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 = {-1.5, 2.5}

See similar equations:

| 5X^3-9X^2+28X+6=0 | | x^2+17x+16=0 | | 2x^2-5x-11=0 | | x^2-x-72=0 | | Y=x^2+6x-4 | | Fx=x^2+4x+7 | | 3x^2+7x=9 | | -14=-22-x^3 | | y=x^3+3x^2-4x-12 | | 2x^3=2x^2-12x-16 | | x^2-0.54*x+0.02=0 | | x^2-0.9*x+0.2=0 | | 2e^6x+3=6 | | 2x^2+6-3=0 | | ax^2+bx+c=0 | | x^6=7x^3-12 | | x^4-2x^2=3 | | 3x^2-6x=4 | | a^2-a-1=0 | | s^2+6s-3=0 | | x^2+2x-5=0 | | 18k^2-25k+3=0 | | x^3-5x=0 | | x^2-2x-4=0 | | x^2-2x+4=0 | | 17x^2-51x+34=0 | | u^3-7u^2=0 | | 4m^2-16m=0 | | 6k^2-k-35=0 | | x^2+1.5*x-0.6=0 | | 9t^2-4= | | x^2+0.54*x-0.02=0 |

Equations solver categories