Question

how to do the ativity a-b whole square?

Answer 1

The property is like this -------> (a-b)^2 = a^2 - 2ab + b^2.................. For eg.---> (2-3)^2= 2^2 - 2×2×3 + (-3)^2........ = 4-12+9= 13-12=1...............

Answer 2

(a-b)2.


the formula is= (a-$b)^{2}$= $a^{2} -2ab+b^{2}$

so for ex:: if a = 2 and b = 3.
(a-$b)^{2}$= (2-$3)^{2}$= 2^2-2ab+3^2.


so 2^2-2*2*3+3^2.

so=+4-12+9= +13-12=1.






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