8x^2+28x-16=

Simple and best practice solution for 8x^2+28x-16= 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 8x^2+28x-16= equation:


Simplifying
8x2 + 28x + -16 = 0

Reorder the terms:
-16 + 28x + 8x2 = 0

Solving
-16 + 28x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-4 + 7x + 2x2) = 0

Factor a trinomial.
4((-4 + -1x)(1 + -2x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5

Solution

x = {-4, 0.5}

See similar equations:

| 56x+27-18(13x+4)=757 | | 0=30x^5+32x^3 | | 8d^2-64d+56=0 | | 2u^2+8u+8=0 | | 3d=4c+6 | | 49g^2-1=0 | | -100=-n^2 | | 5x+10x+10x+5x+(9x+1)+(9x+1)=900 | | 37p^2-24p=0 | | 6x^2+5x-8=4 | | 40g^2-39g=0 | | 40s^2+9s=0 | | 2z^2=288 | | -2(x-6)-4(x-4)=X-7 | | 3n-9= | | k^3+27=0 | | 20=5u-5 | | 7w+5-2(-6w-3)=7(w-1) | | 16x^2+148x+36= | | 5-5u=20 | | 2600=6950-c | | (x^5y+xy)dy+(x^4y^2-y^2)dx=0 | | X(.12)=275 | | mx^2-10x+6m-5=0 | | 3x^4=x | | ln(5-x)=ln(5)-ln(x) | | x+(2x-3)-(x-7)=12 | | 5f^2+41f+8=0 | | ln(x-5)=ln(5)-ln(x) | | 12q^2-35q=0 | | 1+2cosx=1.5 | | 15lnx=0 |

Equations solver categories