Question

(a - b )^2 formulae
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Answer 1

Answer:

hey dear .///

a^2 + 2ab b^2 .

hope it's helpful for you .

Answer 2

Heya mate!!

It is a identity

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

Hope it helps u dear✌️✌️