Question

formula of
${a - b}^{2}$

Answer 1

a^2-2ab+b^2 is the formula of (a-b)^2

Answer 2

Heya user,

[ a - b ]² = [ a - b ][ a - b ]

= a [ a - b ] - b [ a - b ]
= a² - ab -ab + b²
= a² - 2ab + b²

Hence, the formula for -----> [ a - b ]² = a² - 2ab + b²