Question

simplify (3 + √5)(3-√5)

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Answer 1

Answer:

$\huge \pink{{ \mathfrak{ answer}}}$

$\large (3 + \sqrt{5} )(3 - \sqrt{5)}$

$\huge \bold \blue{we \: know \: that}$

$\huge \pink{ \boxed {(a + b) \: (a - b) = {a}^{2} - {b}^{2} }}$

$\huge ( {3}^{}) {}^{2} - ( \sqrt{5 {)}^{2} }$

$\huge \bold \red{9 - 5}$

$\huge \purple{ \mathbb{ = 4}}$

$\huge \green{ \mathfrak{hope \: it \: helps \: u \: mate}}$