Question

Under root 45 x under root 80

Answer 1

Hope this answers the question

Answer 2

Question:

$\sqrt{45} \times \sqrt{80}$

Answer

$\sqrt{45} \times \sqrt{80}$

$\sqrt{5 \times 3 \times 3} \: \: \sqrt{5 \times 2 \times 2 \times 2 \times 2}$

$3 \sqrt{5} \: \: \times 2 \times 2\sqrt{5}$

$3 \sqrt{5} \times 4 \sqrt{5}$

$12 \times \sqrt{5} \times \sqrt{5}$

$12 \times 5$

$60$

Hence, Answer=60

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MORE TO KNOW!

Square: In mathematics, a square is the result of multiplying a number by itself.

Square Root:A number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x. For example, 4 and −4 are square roots of 16, because 4² = (−4)² = 16