(3u-8)(7+u)=0

Simple and best practice solution for (3u-8)(7+u)=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 (3u-8)(7+u)=0 equation: 


Simplifying
(3u + -8)(7 + u) = 0

Reorder the terms:
(-8 + 3u)(7 + u) = 0

Multiply (-8 + 3u) * (7 + u)
(-8(7 + u) + 3u * (7 + u)) = 0
((7 * -8 + u * -8) + 3u * (7 + u)) = 0
((-56 + -8u) + 3u * (7 + u)) = 0
(-56 + -8u + (7 * 3u + u * 3u)) = 0
(-56 + -8u + (21u + 3u2)) = 0

Combine like terms: -8u + 21u = 13u
(-56 + 13u + 3u2) = 0

Solving
-56 + 13u + 3u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-7 + -1u)(8 + -3u) = 0


Subproblem 1
Set the factor '(-7 + -1u)' equal to zero and attempt to solve:

Simplifying
-7 + -1u = 0

Solving
-7 + -1u = 0

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

Add '7' to each side of the equation.
-7 + 7 + -1u = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1u = 0 + 7
-1u = 0 + 7

Combine like terms: 0 + 7 = 7
-1u = 7

Divide each side by '-1'.
u = -7

Simplifying
u = -7

Subproblem 2
Set the factor '(8 + -3u)' equal to zero and attempt to solve:

Simplifying
8 + -3u = 0

Solving
8 + -3u = 0

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

Add '-8' to each side of the equation.
8 + -8 + -3u = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -3u = 0 + -8
-3u = 0 + -8

Combine like terms: 0 + -8 = -8
-3u = -8

Divide each side by '-3'.
u = 2.666666667

Simplifying
u = 2.666666667
Solution
u = {-7, 2.666666667}

See similar equations:

| 2(1-9k)=50-6k | | 18n=108 | | 2w-8=-12 | | (4v^2-3v-7)+(2v^2-5v+1)= | | 0.10x+0.6(50-x)=.40*50 | | 2(3x-5)=11(x-15) | | (7x-7)(8x+1)=0 | | 4m+12= | | -12m^10*3m^3= | | 4b+75=983 | | 1.486x+x=0.2 | | 2x-7=137 | | -11(r-7)=-3(r+9) | | 16t^2-16t-192=0 | | 8(x+2)=5x-14 | | 32-2k=6k | | an=2.5+6(n-1) | | 12-d=40 | | 8[y+(-2x)]= | | -(10x+4)=-2(-8+5x) | | 3x^2=8y | | 37+12+14a-9=6a+11-14+5a | | 9x-8=6x+49 | | 5(-9x+6)+9=-4(12x-9) | | 3*-1-y=15 | | 3y+5=6 | | 7x+1=3+5x | | X+5-8x=28 | | 3*1-y=15 | | 8x-(4x-5)x=2 | | 3(x-8)+8=3x-8(8-x) | | 4x-(3x-2)=2(X-3)-X |

Equations solver categories