(3b-7)(5b+8)=

Simple and best practice solution for (3b-7)(5b+8)= 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 (3b-7)(5b+8)= equation: 


Simplifying
(3b + -7)(5b + 8) = 0

Reorder the terms:
(-7 + 3b)(5b + 8) = 0

Reorder the terms:
(-7 + 3b)(8 + 5b) = 0

Multiply (-7 + 3b) * (8 + 5b)
(-7(8 + 5b) + 3b * (8 + 5b)) = 0
((8 * -7 + 5b * -7) + 3b * (8 + 5b)) = 0
((-56 + -35b) + 3b * (8 + 5b)) = 0
(-56 + -35b + (8 * 3b + 5b * 3b)) = 0
(-56 + -35b + (24b + 15b2)) = 0

Combine like terms: -35b + 24b = -11b
(-56 + -11b + 15b2) = 0

Solving
-56 + -11b + 15b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(-8 + -5b)(7 + -3b) = 0


Subproblem 1
Set the factor '(-8 + -5b)' equal to zero and attempt to solve:

Simplifying
-8 + -5b = 0

Solving
-8 + -5b = 0

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

Add '8' to each side of the equation.
-8 + 8 + -5b = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -5b = 0 + 8
-5b = 0 + 8

Combine like terms: 0 + 8 = 8
-5b = 8

Divide each side by '-5'.
b = -1.6

Simplifying
b = -1.6

Subproblem 2
Set the factor '(7 + -3b)' equal to zero and attempt to solve:

Simplifying
7 + -3b = 0

Solving
7 + -3b = 0

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

Add '-7' to each side of the equation.
7 + -7 + -3b = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -3b = 0 + -7
-3b = 0 + -7

Combine like terms: 0 + -7 = -7
-3b = -7

Divide each side by '-3'.
b = 2.333333333

Simplifying
b = 2.333333333
Solution
b = {-1.6, 2.333333333}

See similar equations:

| 3=h-1/2 | | 6y-9-3y+5=0 | | 2-3x=-1-8 | | 7x+66=2x+1 | | -9•(-4/3) | | 18v=-13 | | 5x+9-3x=-2 | | 1-5x=-1x-8 | | 8(2x-4)-9(X+2)=2-5x | | 225=180-y | | -40+(-10n)=-110 | | 37x+4-19x=22 | | V/5=6.25 | | (5x^2-7x-9)+(3x^2-5x+8)-(x^2-5x-3)= | | 4(u-5)=7u-32 | | 2x-7+3x=10 | | 43.75=7u | | -4(1/4)^-2 | | -10=-4+2u | | 60-40y=x | | 2x+18+5x-3x=90 | | 3(y-2)+6y=12 | | Y=150(2) | | x/3-10=9 | | 5u+18=8u | | -3/v=3 | | .12x=17000 | | 5b-9b=16 | | 8x+48=16 | | 37=15x-5x-3 | | 5u=14+3u | | n/24=5/8 |

Equations solver categories