Question

(a+b)ka whole squar
prove that
kar do ​

Answer 1

$\bold{(a + b) {}^{2}}$

=(a+b)(a+b)

=(a)(a)+(a)(b)+(b)(a)+(b)(b)

$\bold{=a^2+ab+ab+b^2}$

$\bold{=a^2+2ab+b^2}$