Find the square of the number without actual multiplication. 56
Answers
Answered by
1
Step-by-step explanation:
7.48 is correct bro.if not multiply.
But actually we cannot get answer without multiplication.
Answered by
7
56 = 50+6
Squaring both sides,
56^2 = (50+6)^2
we know (a+b)^2 = a^2+b^2+ 2ab
= 50^2 + 6^2 + 2*6*50
= 2500 + 36 + 600
= 3136
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