4x^2-42x+80=0

Simple and best practice solution for 4x^2-42x+80=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^2-42x+80=0 equation:


Simplifying
4x2 + -42x + 80 = 0

Reorder the terms:
80 + -42x + 4x2 = 0

Solving
80 + -42x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(40 + -21x + 2x2) = 0

Factor a trinomial.
2((5 + -2x)(8 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {2.5, 8}

See similar equations:

| 2+1.9x=0.5x+2 | | graphy-5x=0 | | x=1.50+.50y | | 2u^2+4=-9u | | Logx=274 | | -6y=8x+6 | | X^2-9x/x+2 | | x+30=76 | | -12y-10=6y+16 | | X/10+2x/15=x/20 | | x-33=14 | | X^2+y^2-60y=0 | | .4x+.4(20)=.2(x+40) | | 4x-3(2+2x)=-6-2x | | -4y=6x-4 | | 8(1.66)-5y=40 | | 1/2(16z+8)-1=7(z-6) | | 8(-0)+4y=16 | | 3n-5=-17+7n | | 8x+4(4-8x)=16 | | x/3=4+(x-30)/5 | | p=xw-xw^2 | | 2x/3-x=x/18-7/6 | | -4=6x-4 | | 2X*X+4X-1=0 | | 2(X*X)+4X-1=0 | | 7z-28=-18+5z | | 35(12.00+x)=2170 | | 1/x=6/x-1/2 | | 9x+21=120 | | 9/11-1/3=x/9 | | 2y=x+20 |

Equations solver categories