Question

2. Factorise the following expressions.
36x²y² - 64
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Answer 1

Answer:

36x²y²-64

(6xy)² - (8)²

to factorize this , we need to use the formula - a²-b² =(a+b)(a-b)

a=6xy

b=8

factors = (6xy+8 ) (6xy-8)

             = 2(3xy+4) * 2(3xy-4)

              = 4*(3xy+4)*(3xy-4)

Step-by-step explanation:

factors are = 4

                    (3xy+4)

                    (3xy-4)

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Answer 2

Answer:

4(3xy-4) (3xy+4)

Step-by-step explanation:

it's a formula like a^2-b^2=(a+b)(a-b)