Math, asked by mailjainh, 4 months ago

Please evaluate 400.7^2 using identities (ALGEBRIC EXPRESSIONS)

Answers

Answered by ashadhaked74

2

Answer:

By using (a+b)²

(400 + 0.7)²

(400)² + 2*400*0.7 + (0.7)²

1600 + 560 + 0.49

2160.49

Hope you understood

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