5x^2=31x+28

Simple and best practice solution for 5x^2=31x+28 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 5x^2=31x+28 equation:


Simplifying
5x2 = 31x + 28

Reorder the terms:
5x2 = 28 + 31x

Solving
5x2 = 28 + 31x

Solving for variable 'x'.

Reorder the terms:
-28 + -31x + 5x2 = 28 + 31x + -28 + -31x

Reorder the terms:
-28 + -31x + 5x2 = 28 + -28 + 31x + -31x

Combine like terms: 28 + -28 = 0
-28 + -31x + 5x2 = 0 + 31x + -31x
-28 + -31x + 5x2 = 31x + -31x

Combine like terms: 31x + -31x = 0
-28 + -31x + 5x2 = 0

Factor a trinomial.
(-4 + -5x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -5x)' equal to zero and attempt to solve: Simplifying -4 + -5x = 0 Solving -4 + -5x = 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 + -5x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5x = 0 + 4 -5x = 0 + 4 Combine like terms: 0 + 4 = 4 -5x = 4 Divide each side by '-5'. x = -0.8 Simplifying x = -0.8

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-0.8, 7}

See similar equations:

| (3x-2)(4-x)-(2x-3)=7-3x | | x^2-10x+25=40 | | .75x=-69 | | 3x-15=8x | | 2x^2+32x+78=0 | | (3a+5)(2a-6)= | | 2x-17=-5 | | X(2)-8x+16=0 | | -3+x=-x+9 | | 3a(7b+6c)=0 | | 8n+5=61 | | 7x= | | -4.4=4y | | 60-6x=12x+18 | | 53-(-17)= | | 33=9+2x | | 4x-7x=4x+6x | | 7z-4=-13+2 | | 3x+7x=9y+2y | | -101-38= | | 1.2=1.9t^2 | | x^4-5x^2+4=04 | | -9-(-15)= | | 4p=-16 | | y+3=-14 | | 1.2=3.8t^2 | | 29-(-11)= | | -x^2-4x+5=0 | | -5x-26=34 | | 6-7x=-6x+16 | | X+(3x-2)=90 | | N-9=19 |

Equations solver categories