Question

Chart for identity of algebric expression

Answer 1

Answer:

(a+b)the whole square=a^2+2ab+b^2

(a-b)^2=a^2-2ab+b^2

a^2-b^2=a+b*a-b

Step-by-step explanation:

Answer 2

Algebric identities

$\sf{=>(x + y)(z + a) = xz + \: xy \: + yz + \: ya}$

$\sf{= > ({a \: + b})^{2} = {a}^{2} + 2ab + {b}^{2}}$

$\sf{ = > ({a \: - b})^{2} = {a}^{2} - 2ab + {b}^{2}}$

$\sf{= > (a \: + b)(a - b) = {a}^{2} - {b}^{2}}$