Question

Find the product of (a +√b ) (a -√b ).​

Answer 1

Answer:

Product is a²-b

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Answer 2

$\huge\tt{\bold{\underline{\underline{Question᎓}}}}$

Find the product of (a +√b ) (a -√b ).

$\huge\tt{\bold{\underline{\underline{Answer᎓}}}}$

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$= > (a + \sqrt{b} )(a - \sqrt{b} )$

Here ,this identity is used :

$\bold{\boxed{\red{(a + b)(a - b) = {a}^{2} - {b}^{2}}}}$

$= > (a + \sqrt{b} )(a - \sqrt{b} ) = {a}^{2} - {( \sqrt{b}) }^{2}$

$\huge\mathcal{Other \: Formulas:}$

$\bold{\boxed{{(a - b)}^{2} = {a}^{2} + {b}^{2} + 2ab}}$

$\bold{\boxed{ {(a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab}}$

$\bold{\boxed{ {(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b)}}$

$\bold{\boxed{{(a - b)}^{3} = {a}^{3} + {b}^{3} - 3ab(a - b)}}$

$\bold{\boxed{ {a}^{3} + {b}^{3} = (a + b)( {a}^{2} + {b}^{2} - ab)}}$

$\bold{\boxed{ {a}^{3} - {b}^{3} = (a - b)( {a}^{2} + {b}^{2} + ab)}}$

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