x(15x+28)=99

Simple and best practice solution for x(15x+28)=99 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 x(15x+28)=99 equation: 


Simplifying
x(15x + 28) = 99

Reorder the terms:
x(28 + 15x) = 99
(28 * x + 15x * x) = 99
(28x + 15x2) = 99

Solving
28x + 15x2 = 99

Solving for variable 'x'.

Reorder the terms:
-99 + 28x + 15x2 = 99 + -99

Combine like terms: 99 + -99 = 0
-99 + 28x + 15x2 = 0

Factor a trinomial.
(-11 + -3x)(9 + -5x) = 0


Subproblem 1
Set the factor '(-11 + -3x)' equal to zero and attempt to solve:

Simplifying
-11 + -3x = 0

Solving
-11 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + -3x = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -3x = 0 + 11
-3x = 0 + 11

Combine like terms: 0 + 11 = 11
-3x = 11

Divide each side by '-3'.
x = -3.666666667

Simplifying
x = -3.666666667

Subproblem 2
Set the factor '(9 + -5x)' equal to zero and attempt to solve:

Simplifying
9 + -5x = 0

Solving
9 + -5x = 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 + -5x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5x = 0 + -9
-5x = 0 + -9

Combine like terms: 0 + -9 = -9
-5x = -9

Divide each side by '-5'.
x = 1.8

Simplifying
x = 1.8
Solution
x = {-3.666666667, 1.8}

See similar equations:

| 60=x+20 | | 4c-4.4=44 | | 30r+5r*1.4=43660 | | 30r+5*1.4=43660 | | 5x-12=-62 | | 15+1n=-3 | | -3n+12=8n+n | | 82-x=44 | | 27x^2-135x-140=0 | | 30r+5*1.4=h | | m+3-6m=-15+m | | 30r+5*1.4=r | | p+7=9-p | | 2-2x+4=8x+16 | | -354=-6(3+8n) | | 10u-5=-75 | | 4x^2+4x-2=7 | | 5x+3y=6x+y | | -2(-6x-2)=-92 | | 11x^2-22x+10=0 | | -4(-2-3z)13z= | | -99=-3(4x+1) | | 3xy^2(-5x^3y)= | | 3xy^2(15x^3y)= | | .25y+25+y+3(.25y+25)-2y=100 | | 18=n-2+4n | | 2t+8t+9t-4= | | Q=3r(s+t) | | 7b+2b=18 | | 4x^2+3y^2-12=0 | | 4x-1y=100 | | 6(x-10)=4.5x |

Equations solver categories