Question

simplify (-3+✓5) (-3-✓5)
fast please​

Answer 1

${\huge{\boxed{\underline{\textsf{\textbf{\color{pink}{Final\:An}{\pink{sw}{\purple{er:-}}}}}}}}}$

3

$\huge\underbrace\red{\dag Given:- \dag}$

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

$\huge\underbrace\pink {\dag To Find:- \dag}$

Simplification

$\huge\underbrace\green {\dag Identity \:Used:- \dag}$

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

$\huge\underbrace\purple{\dag Solution:- \dag}$

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

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

=$-3 \times -3 - \sqrt{5} \times \sqrt{5}$ [-‘ve’ $\times$ -‘ve’ become +‘ve’ and root

$=9-5$  

$=3$

⇔ ⇔ ⇔ ⇔⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔

$\huge\underbrace\green {\dag to \ cross \ check:-\dag}$

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

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

$-3 \times -3 -3 \times -\sqrt{5 }+ \sqrt{5} \times -3 + \sqrt{5} \times -\sqrt{5}$

$=9+3\sqrt{5}-3\sqrt{5}-5$ [$3\sqrt{5}$ get canceled by $-3\sqrt{5}$ ]

$=9-5$

$=3$

Answer 2

Answer:

3 is the answer

keep me as brainliest