What is 8b2 - 8 factored?

8 • (b + 1) • (b - 1)

Step-by-step explanation:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 23b2 -  8

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  8b2 - 8  =   8 • (b2 - 1)

Trying to factor as a Difference of Squares :

3.2      Factoring:  b2 - 1

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 1 is the square of 1

Check :  b2  is the square of  b1

Factorization is :       (b + 1)  •  (b - 1)

Final result :

 8 • (b + 1) • (b - 1)

i think it would be 43 movies that would have to be watched.

step-by-step explanation:

think about it. for the second plan, every month is 8 dollars. 8 x 12= 96. so thats the number for the second plan. now for the first plan, its annual meaning you have to pay 10 dollars every year. so now you have to get an equivalent amount of 86 since 96-10=86. 86 divided by 2 since every movie costs 2$ then you would have to watch 43 movies a year to get the same as the second plan. i really hoped this . have a wonderful day as well!

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step-by-step explanation: