Question

write formula for each of the following:-
$1. \: \: {a}^{2} - {b}^{2} \\ 2. {(a + b)}^{2} \\ 3. {(a - b)}^{2} \\ 4.{(a + b)}^{3} \\ 5. {(a - b)}^{3}$
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Answer 1

1) (a+b) (a-b)

2) a²+2ab+b²

3) a²-2ab+b²

4) a³+b³ +3ab(a+b)

5) a³-b³-3ab(a-b)

Answer 2

$\color{Red}{Answer: -}$

$1. \: (a + b)(a - b) \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ 2. \: \: {a}^{2} + 2ab + {b}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ 3. \: \: {a}^{2} - 2ab + {b}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\4. \: \: {a}^{3} + {b}^{3} + 3{a}^{2} b + 3a {b}^{2} \\ 5. \: \: {a}^{3} - {b}^{3} - 3 {a}^{2} b + 3a {b}^{2}$