4x^2-16x=9

Simple and best practice solution for 4x^2-16x=9 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^2-16x=9 equation:


Simplifying
4x2 + -16x = 9

Reorder the terms:
-16x + 4x2 = 9

Solving
-16x + 4x2 = 9

Solving for variable 'x'.

Reorder the terms:
-9 + -16x + 4x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + -16x + 4x2 = 0

Factor a trinomial.
(-1 + -2x)(9 + -2x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Solution

x = {-0.5, 4.5}

See similar equations:

| 0.5t+8=5 | | 39-4x=11+10x | | (3i)(5i)(-2i)= | | 1.5x-8=2.5 | | (3i)(5i)(-21i)= | | 0.125x+0.6=-1.2 | | 18+7(18+2x)+7= | | 12(5280)= | | a^2-18a-17=2a | | 0.5x-12=13 | | 5x=24-4 | | 2s^3+s^2-25s+12=0 | | 0.375x-8=4 | | 28=13.8x+262.6 | | -0.7+0.25x=0.4 | | 6x-1y-6z=0.15 | | 2(x+2)=40 | | 2(x+8)=3 | | 4x-x^2=y | | 3=2x^2-4x | | -2x-42.6=4.2 | | 4x+5y+(-18x)= | | (k+1)(5k-2)= | | ln(12x^2)=0 | | y-3=-15 | | Y+14+5y-14=90 | | 3x+6=x-4-7 | | c-0.14c= | | 10y-7y-13=39.17 | | 112m^2-79m-56=0 | | Y+14+5y-14=180 | | x-0.16x= |

Equations solver categories