Question

(a+b) (a-b) = a² - _____​

Answer 1

(a+b) (a-b) = a² - 300

hope it helps

Answer 2

$\mathtt\green{ \: Data \: Given \: In \: Question:-}$

• $\sf \: (a + b)(a - b) = {a}^{2} -$

$\mathtt\blue{What \: We \: Have \: To \: Do:-}$

• $\sf \: this \: is \: the \: identity. \: \: we \: \: have \: to \: \: \\ \sf \: write \: in \: blank \: space \: which \: is \: equal \\ \sf \: to \: : \longrightarrow(a + b)(a - b)$

$\mathtt\pink{Let's \: Start:-}$

• $\mathtt \ \sf \underline { : the \: identity} \\ \: \rightarrow \sf(a + b)(a - b) = {a}^{2} - {b}^{2}$