Question

77×63 find the product using identities

Answer 1

Answer:4851

Step-by-step explanation:

Answer 2

(70+7)(70-7)

by using identity a^2-b^2=(a+b)(a-b)

a=70

b=7

it is given in the form of (a+b)(a-b) so we can convert it to a^2-b^2

(70)^2-(7)^2

4900-49

4,851

hope it helps

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