Question

Algebraic indentities for class 8

Answer 1

The identities are:-
${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab \\ {(a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab \\ (a + b)(a - b) = {a}^{2} - {b}^{2} \\ (x + a)(x + b) = {x}^{2} + (a + b)x + ab$
Hope it helped

Answer 2

Answer:

IDENTITIES:

(a + b)2= a2+ 2ab + b2--(I)

(a – b)2= a2– 2ab + b2--(II)

(a + b) (a – b) = a2– b2--(III)

(x + a) (x + b) = x2+ (a + b) x + ab --(IV)