Question

GIVING BRAINIEST IF CORRECT!!!!

Answer 1

$\sqrt{45} + \sqrt{18}$

• Let us write the expressions with their factors.

$= \sqrt{3 \times 3 \times 5} + \sqrt{2 \times 3 \times 3} \\ = \sqrt{ {3}^{2} \times 5 } + \sqrt{ {3}^{2} \times 2 }$

• Here, square root and the square of ${3}^{2}$ will get cancelled out.

$= 3 \sqrt{5} + 3 \sqrt{2}$

• Now, take 3 as common.

$= 3( \sqrt{5} + \sqrt{2} )$

Answer:

$3( \sqrt{5} + \sqrt{2} )$

Hope you could understand.

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