Question

Class -9 Ques Number Systems..Plz help to solve me.. And answer should be 441

Answer 1

$\sqrt{63} \times \sqrt{3087} \\ \\ = \sqrt{3 \times 3 \times 7} \times \sqrt{3 \times 3 \times 7 \times 7 \times 7} \\ \\ = 3 \sqrt{7} \times 21 \sqrt{7} \\ \\ = 3 \times 21 \times \sqrt{7 \times 7} \\ \\ = 3 \times 21 \times 7 \\ \\ = 441$

Answer 2

√63=3*3*7
√3087=3*3*7*7*7