Help Please?

Nakim simplyfied (equation will be in comments) and got -10xSqrT(2x).
Part |: Using complete sentences explain what nakim did wrong.
Part ||: Show all your work to simpify the expression.

Question

Help Please?

Nakim simplyfied (equation will be in comments) and got -10xSqrT(2x).
Part |: Using complete sentences explain what nakim did wrong.
Part ||: Show all your work to simpify the expression.

anonymous · Answer

$$3\sqrt{2x}+x \sqrt{8x}-5\sqrt{18x}$$

reemii · Answer

is it $-10x \sqrt{2x}$ that is in the statement?

anonymous · Answer

Yes

jdoe0001 · Answer

so, what did YOU get?

anonymous · Answer

I don't know how but i somehow got $$-2\sqrt{-16x}+x \sqrt{8x}$$

anonymous · Answer

I came on here hoping someone could explain this to me. Because to me, mine looks completely wrong.

jdoe0001 · Answer

hmm,  let's simplify 2 numbers there, 18 and 8|dw:1369939079674:dw|

so, how else can we really rewrite 18 and 8?