Math, asked by IISharifLondaII, 2 months ago

find the following sqares by using the identities (b-7)² CLASS 8

Answers

Answered by XxMissDevil01xX

1

Answer:

(b-7)²

using the Identity (a-b) ²= a²-2ab+b²

= (b) ²-2×b×7+(7)²

=b²-14b+49

Answered by vineettiwari750

0

Answer:

(b-7)^2

We know that (x-y)^2 = x^2+y^2-2xy

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

= b^2 + 49 - (2*7)*b

= b^2 + 49 - 14b

Step-by-step explanation:

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