Question

2√72 + 5√242 what is the answer for this question please can u tell me the right answer​

Answer 1

Answer:

67$\sqrt{2}$

Step-by-step explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals

$\sqrt{72}$ = $\sqrt{36(2)}$ = $\sqrt{36}$ × $\sqrt{2}$ = 6$\sqrt{2}$

$\sqrt{242}$ = $\sqrt{121(2)}$ = $\sqrt{121}$ × $\sqrt{2}$ = 11$\sqrt{2}$

Then

2$\sqrt{72}$ + 5$\sqrt{242}$

= 2(6$\sqrt{2}$ ) + 5(11$\sqrt{2}$ )

= 12$\sqrt{2}$ + 55$\sqrt{2}$

= 67$\sqrt{2}$