4x^2=16x+20

Simple and best practice solution for 4x^2=16x+20 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+20 equation:


Simplifying
4x2 = 16x + 20

Reorder the terms:
4x2 = 20 + 16x

Solving
4x2 = 20 + 16x

Solving for variable 'x'.

Reorder the terms:
-20 + -16x + 4x2 = 20 + 16x + -20 + -16x

Reorder the terms:
-20 + -16x + 4x2 = 20 + -20 + 16x + -16x

Combine like terms: 20 + -20 = 0
-20 + -16x + 4x2 = 0 + 16x + -16x
-20 + -16x + 4x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
-20 + -16x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-5 + -4x + x2) = 0

Factor a trinomial.
4((-1 + -1x)(5 + -1x)) = 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 '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-1, 5}

See similar equations:

| 20x+10y=-50 | | 4x-6^2/-3x5 | | 1/8+4/5 | | 2r+95=15 | | 196-4=72 | | 7.39=2(3.14)(R) | | 6(T-5)+4T=5(2T+5)-11 | | -6*-6+6*6+5= | | 7x^2-x-8= | | 52*11/26*3/4 | | 3x^3-9x+1= | | x+5/3x=35 | | y=345/5 | | -9p-(12-2p)= | | a^2-24=0 | | x-3+x= | | -x-x+3= | | x-x+3= | | (3m/n^5)^3 | | 8.4/1.2 | | 1.2/8.4 | | 4x^2+16x+16=81x | | 14z+16=28z-2 | | 5y+x=7 | | P=b+a+2cforb | | (5x/8y^5)^2 | | 3/4-3/5x=17/20 | | (5)(x+3)+(3)=(4x)/(x+3) | | 4y+10=8y-2 | | y=-1/4(-3.2)-2 | | 7y+12=27y+7 | | 1-16/x^2/1-4/x |

Equations solver categories