Question

Simplify using suitable identity : (8 − 7)2 + (7 + 8)2
​

Answer 1

Answer:

30

Step-by-step explanation:

(8-7)2 + (7+8)2 =

2[ (8+7) (8-7)]

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

2[(8^2) - (7^2)]

2[64-49]

2[15]

30

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