I am messing up this problem: Multiply and simplify: √7x(√x - 7√7).
1. √7+(√x) + √7x(-7√7)
2. √7x2 + √x(-7)
3. ?

Question

nnesha · Answer

^7x ??
what's this sign "^" for ?

anonymous · Answer

square root

nnesha · Answer

lel okay so $$\sqrt{7x} (\sqrt{x - 7^7})$$
like this ?? :o
can you use drawing tool plz :-)

nnesha · Answer

http://prntscr.com/6y63to

anonymous · Answer

√7x(√x-7√7) this is the original problem

wmj259 · Answer

$$\sqrt{7x}(\sqrt{x}-7\sqrt{7})$$


Is that right?

anonymous · Answer

yes

shiraz14 · Answer

@Rose2812: If the question was as indicated by wmj259, i.e.:

√(7x)(√x - 7√7)

then the answer would be:

(√7)x - 49√x

anonymous · Answer

Thank you for your answer but I am also looking for the steps to get there.

nnesha · Answer

okay so question is $$\huge\rm \sqrt{7x} (\sqrt{x} - 7 \sqrt{7})$$
distribute parentheses by sqrt{7x}

nnesha · Answer

$$\huge\rm \sqrt{7x} \times \sqrt{x} - \sqrt{7x}\color{red}{ 7}\sqrt{7}$$
first term of 2nd step is right 
for 2nd one multiply 7x by 7(which is under the square root )   red 7 would stay outside the root

nnesha · Answer

let me know if you  have aany question  about it :-)

anonymous · Answer

Thank you!

nnesha · Answer

did you get the answer ?

anonymous · Answer

Yes, now I just have to figure out how to input exponential functions on a graphing calculator!

nnesha · Answer

ohh cool! :-)