Question

(a-b)²= a ²+ b²- 2ab

Answer 1

Hey !

_______________

YES !

➡( a - b )2 = a2 + b2 - 2ab



Prove --- >


( a - b )2 = ( a - b ) ( a - b )

==> a ( a - b ) - b ( a - b )

=> a2 - ab -ab + b2

==> a2 + b2 -2ab

Hence proved
Hence the formula is
correct

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Hope it helps !☺

Answer 2

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