Question

without actual multiplication , find the squares of: ¡¡) 56​

Answer 1

Answer:

3136

Step-by-step explanation:

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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