what is the value of ( 7.5*7.5+37.5+2.5×2.5 ) ?
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Answered by
9
(7.5)²+2×7.5×2.5+(2.5)²,
(7.5+2.5)²,
(10)²,
100
(7.5+2.5)²,
(10)²,
100
Answered by
1
Answer:
(7.5×7.5+37.5+2.5×2.5)
=a=7.5andb=2.5
=a×a+2ab+b×b
=a2+2ab+b2
=(a+b)2=(7.5+2.5)2
=(10)2=100
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