Question

points 50
which identity should be used in
$( {(5z - 2)}^{2} + 40z) \div 5z + 2$
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Answer 1

Answer:

identify used is

a^2-b^2=(a+b)(a-b)

(a+b)^2=a^2+b^2+2ab

solution attached above......

Answer 2

Answer:

REFER to the attachment:.