Question

Which expressions are equivalent to the given expression?

Answer 1

Answer:

(a). and (b).

Step-by-step explanation:

Answer 2

Simplify Square Roots -

Find one perfect square and one imperfect square to multiply to the square root.

$\sqrt{4 \times 10} = 2 \sqrt{10}$

$40^{ \frac{1}{2} } = \sqrt[2]{(40) ^{1} } = \sqrt{40}$

$\sqrt{40} \neq 4 \sqrt{10}$

$160 ^{ \frac{1}{2} } = \sqrt[2]{160 ^{1} } = \sqrt{160} \neq \: \sqrt{40}$

$5 \sqrt{8} \neq \: \sqrt{40}$