How do you simplify $(16sqrt21) / (2sqrt7)$ ?

Question

2335 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-05-09T10:26:26

$8sqrt3$

$"using the "color(blue)"law of radicals"$

$•color(white)(x)sqrta/sqrtbhArrsqrt(a/b)$

$rArr16/2xxsqrt21/sqrt7=8xxsqrt(21/7)=8sqrt3$

Answer 2 · 2018-05-09T10:43:00

$(16sqrt21)/(2sqrt7)=13.856$

Given -

$(16sqrt21)/(2sqrt7)$

$16/2xxsqrt21/sqrt7$

$16/2xx(sqrt21)^2/(sqrt7)^2$

$16/2xx21/7$

$8xxsqrt3=8 xx 1.732=13.856$

$(16sqrt21)/(2sqrt7)=13.856$

How do you simplify (16sqrt21) / (2sqrt7)(16sqrt21) / (2sqrt7)?