Question

√7*(2√7) = ?
√13,69*4= ?
√28*63= ?
√75/√3= ?
2 в 4 степени * 5 в 2 степени=?

Answer 1

1)
$\sqrt{7} \times (2 \times \sqrt{7} ) = 7 \times 2 = 14$

2)

$\sqrt{13.69 \times 4} = 7.4$


3)
$\sqrt{28 \times 63} = \sqrt{1764} = 42$
4)
$\sqrt{ \frac{75}{3} } = \sqrt{25} = 5$
5)
${2}^{4} \times {5}^{2} = 16 \times 25 = 400$