Question 1

Formula of a square minus b square

Question 2

$\large\bf{\orange{ \implies}} \: \tt \: {a}^(2) \: - \: {b}^(2)$

$\large\bf{\pink{ \implies}} \: \tt \: (a + b) \quad \: (a - b)$

$\large\bf{\pink{ \implies}} \: \tt \: a \: (a - b) \quad \: b \: (a - b)$

$\large\bf{\pink{ \implies}} \: \tt \: {a}^(2) \: - \: ab \: + \: ba \: - \: {b}^(2)$

$\large\bf{\pink{ \implies}} \: \tt \: {a}^(2) \: - \: ab \: + \: ab \: - \: {b}^(2)$

$\large\bf{\pink{ \implies}} \: \tt \: {a}^(2) \: - \: \cancel{ab} \: + \: \cancel{ab} \: - \: {b}^(2)$

$\large\bf{\pink{ \implies}} \: \tt \: {a}^(2) \: - \: {b}^(2)$

Question 3

Answer:

(a+b)(a-b)

Explanation:

$\\ \sf\longmapsto (a+b)(a-b)$

$\\ \sf\longmapsto a(a-b)+b(a-b)$

$\\ \sf\longmapsto a^2-ab+ba-b^2$

$\\ \sf\longmapsto a^2-ab+ab-b^2$

$\\ \sf\longmapsto a^2-b^2$

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