Question

evaluate √175×√28 .​

Answer 1

Step-by-step explanation:

√25×7×√4×7

=5√7×2√7

=10(√7)^2

=10×7=70

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Answer 2

Answer:

$\sqrt{175} \times \sqrt{28}$

$\sqrt{175} = \sqrt{5 \times 5 \times 7}$

$\sqrt{28} = \sqrt{2 \times 2 \times 7}$

=$\sqrt{5×5×7}×\sqrt{2×2×7}$

=$5 \times2 × \sqrt{7} \times \sqrt{7}$

=$10 \times 7$

=$70$