(2b-9)(2b+5)=

Simple and best practice solution for (2b-9)(2b+5)= 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 (2b-9)(2b+5)= equation:


Simplifying
(2b + -9)(2b + 5) = 0

Reorder the terms:
(-9 + 2b)(2b + 5) = 0

Reorder the terms:
(-9 + 2b)(5 + 2b) = 0

Multiply (-9 + 2b) * (5 + 2b)
(-9(5 + 2b) + 2b * (5 + 2b)) = 0
((5 * -9 + 2b * -9) + 2b * (5 + 2b)) = 0
((-45 + -18b) + 2b * (5 + 2b)) = 0
(-45 + -18b + (5 * 2b + 2b * 2b)) = 0
(-45 + -18b + (10b + 4b2)) = 0

Combine like terms: -18b + 10b = -8b
(-45 + -8b + 4b2) = 0

Solving
-45 + -8b + 4b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(-5 + -2b)(9 + -2b) = 0

Subproblem 1

Set the factor '(-5 + -2b)' equal to zero and attempt to solve: Simplifying -5 + -2b = 0 Solving -5 + -2b = 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 + -2b = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2b = 0 + 5 -2b = 0 + 5 Combine like terms: 0 + 5 = 5 -2b = 5 Divide each side by '-2'. b = -2.5 Simplifying b = -2.5

Subproblem 2

Set the factor '(9 + -2b)' equal to zero and attempt to solve: Simplifying 9 + -2b = 0 Solving 9 + -2b = 0 Move all terms containing b to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2b = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2b = 0 + -9 -2b = 0 + -9 Combine like terms: 0 + -9 = -9 -2b = -9 Divide each side by '-2'. b = 4.5 Simplifying b = 4.5

Solution

b = {-2.5, 4.5}

See similar equations:

| (2p+5q)(2p-5q)= | | 2*2+3= | | 5x+3(10-x)= | | (m-6)(m+8)= | | (7p+3q)*(7p-3q)= | | 13(x+2)=6-x | | 1/3(x+2)=6-x | | 7-x=(15+x)-(2x-8) | | 9(x+8)=18x-35 | | 2x-5y=-13 | | x=6-x | | 2x-5y=19 | | y=10x-7 | | 0=x^3+4x^2-4x | | x^3=4x^2+4x | | 2c+1=c+8 | | 4(a+8)=36 | | M+16-2m+3m=4m-24 | | 5x+4y=5 | | 4xy=-30 | | e^2=6x | | 6x+6=4x+22 | | 4m+6=-5 | | 120-7x=11x+22 | | 45=16-2a | | 6=-7m+3 | | x^2-x-67*180=0 | | 8+16x=-3(-4x-4) | | X^2+1=50 | | 8=4w^2-24 | | -7x^2+8=-13 | | 5x^2+6=16 |

Equations solver categories