using suitable identify evalute (87)2
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Answered by
1
Answer:
hey mate here is your answer
Step-by-step explanation:
pls mark me as brainliest
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Answered by
0
Answer:
7569
Step-by-step explanation:
(87)²
=(90-3)²
acc to identity, (a-b)²= a²+b²-2ab
(90-3)²= 90²+3²-2(90×3)
= 8100+9-540
= 7569
hope this helps....
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