28x^2+12x-16=0

Simple and best practice solution for 28x^2+12x-16=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 28x^2+12x-16=0 equation:


Simplifying
28x2 + 12x + -16 = 0

Reorder the terms:
-16 + 12x + 28x2 = 0

Solving
-16 + 12x + 28x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-4 + 3x + 7x2) = 0

Factor a trinomial.
4((-1 + -1x)(4 + -7x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 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 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(4 + -7x)' equal to zero and attempt to solve: Simplifying 4 + -7x = 0 Solving 4 + -7x = 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 + -7x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -7x = 0 + -4 -7x = 0 + -4 Combine like terms: 0 + -4 = -4 -7x = -4 Divide each side by '-7'. x = 0.5714285714 Simplifying x = 0.5714285714

Solution

x = {-1, 0.5714285714}

See similar equations:

| 70=3(-6n-5)-5 | | 5(y+3)=3y+21 | | -168=8(-4p+3) | | 7(1+5x)=238 | | 6t^2+23t-35=0 | | 7.5y=195 | | 6x-3/4x=11 | | 0=-0.7x^2+1.2x-1 | | 7a^2+18ab+11b^2=0 | | 2x^2-5x=-67 | | -5-x=-3x-17 | | 5(x-3)+x=3(2x-5) | | 4.811095E-5=x | | b^2-20b+100=0 | | -8x-1= | | g/5=10 | | 8a+9a+5= | | 5b-9=b-9 | | 3y=18+y | | 3(7+x)=36 | | 7x-82=3x-10 | | X+4=5x-21 | | 3x=-2x | | -2(2m-9)+5(m-4)=11-6 | | 6(x+2)=0 | | 5x-180=4y | | 5-(n-4)=3(n+6) | | 2x-(x-(3x-(6x+5)))=4x-1 | | 9y-8(y-1)+5=13 | | Ax+6=3x+b | | 2=2(2u+1) | | 3(x-4)-2x=25 |

Equations solver categories