(b-5)(2b+7)=

Simple and best practice solution for (b-5)(2b+7)= 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 (b-5)(2b+7)= equation: 


Simplifying
(b + -5)(2b + 7) = 0

Reorder the terms:
(-5 + b)(2b + 7) = 0

Reorder the terms:
(-5 + b)(7 + 2b) = 0

Multiply (-5 + b) * (7 + 2b)
(-5(7 + 2b) + b(7 + 2b)) = 0
((7 * -5 + 2b * -5) + b(7 + 2b)) = 0
((-35 + -10b) + b(7 + 2b)) = 0
(-35 + -10b + (7 * b + 2b * b)) = 0
(-35 + -10b + (7b + 2b2)) = 0

Combine like terms: -10b + 7b = -3b
(-35 + -3b + 2b2) = 0

Solving
-35 + -3b + 2b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(-7 + -2b)(5 + -1b) = 0


Subproblem 1
Set the factor '(-7 + -2b)' equal to zero and attempt to solve:

Simplifying
-7 + -2b = 0

Solving
-7 + -2b = 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 + -2b = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -2b = 0 + 7
-2b = 0 + 7

Combine like terms: 0 + 7 = 7
-2b = 7

Divide each side by '-2'.
b = -3.5

Simplifying
b = -3.5

Subproblem 2
Set the factor '(5 + -1b)' equal to zero and attempt to solve:

Simplifying
5 + -1b = 0

Solving
5 + -1b = 0

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

Add '-5' to each side of the equation.
5 + -5 + -1b = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -1b = 0 + -5
-1b = 0 + -5

Combine like terms: 0 + -5 = -5
-1b = -5

Divide each side by '-1'.
b = 5

Simplifying
b = 5
Solution
b = {-3.5, 5}

See similar equations:

| 1.6(a-1.5)=1.2(a-7) | | A-C=P | | 2.5x-18=7 | | 950+900+5x=700+500+10x | | -5-6y=-22 | | -27/1/2 | | 12-x=58 | | 5v-9=-7v-9 | | 9*-3/1 | | 7(5x+9)=12-(x+5) | | b/2+1=-4 | | 7x-(3-x)=5 | | 5(3x+2)=3(x-5)-4 | | 10.8-.2=9 | | 9+2n=5 | | x^2+28=3 | | -16+2x=8 | | 6+m/10=4 | | x-4(2x/2) | | -9n-8=118 | | 7x+15-6x=-2-10 | | 37=x+(x+4)+(x+6) | | 70y=23(3y+2) | | 18=8t-11t | | 56=5y+11 | | 6y-3=19+6y | | p/5=9 | | 5*x=3*x | | -5u+1/4=-1/4*u-1/3 | | -7+(9n+2)=-(6n-3)-9 | | -5u+1/4=-1/4u-1/3 | | p/20=14 |

Equations solver categories