Question

What is an identity in algebric expression

Answer 1

hey..
these are all identities of algebra required in 9th class

keep smiling
keep loving

Answer 2

ALGEBRIC IDENTITIES :-

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

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

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

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