How do you simplify $- 4 \sqrt{28}$ $-4sqrt28$ ?

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How do you simplify $- 4 \sqrt{28}$ $-4sqrt28$ ?

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Answer 1 · 2017-05-28T13:14:23

$- 8$ $-8$ $\sqrt{7}$ $sqrt7$

Explanation:

$- 4$ $-4$ $\sqrt{28}$ $sqrt28$ can also be written $a s$ $as$
$\Rightarrow$ $rArr$ $- 4$ $-4$ $\sqrt{7 \cdot 4}$ $sqrt(7*4)$
$\Rightarrow$ $rArr$ $- 4$ $-4$ $\sqrt{7 \cdot 2 \cdot 2}$ $sqrt(7*2*2)$
$\Rightarrow$ $rArr$ $- 4$ $-4$ $\sqrt{7 \cdot 2^{2}}$ $sqrt(7*2^2)$
$\Rightarrow$ $rArr$ $- 4$ $-4$ $\sqrt{7}$ $sqrt(7)$ $\sqrt{2^{2}}$ $sqrt(2^2)$
$\Rightarrow$ $rArr$ $- 4$ $-4$ $\sqrt{7} \cdot 2$ $sqrt(7)*2$
$\Rightarrow$ $rArr$ $- 8$ $-8$ $\sqrt{7}$ $sqrt(7)$
$s o$ $so$ $t h e$ $the$ final $a n s$ $ans$ $i s$ $is$ :- ( $- 8$ $-8$ $\sqrt{7}$ $sqrt(7)$ )

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How do you simplify $- 4 \sqrt{28}$ $-4sqrt28$ ?

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