Question

Simplify the expression.

x times the square root of the quantity 64 x cubed, plus 2 x times the square root of x, plus 8 times the square root of the quantity 2 x

If the simplified expression is written in standard form, what is the leading coefficient?

Answer 1

hold on I'm doing it lol

Answer 2

\[\Large x \sqrt{64x^3} + 2x \sqrt{x} + 8 \sqrt{2x}\]?

Answer 3

\[x \sqrt{64x^3} + 2x \sqrt{x} + 8\sqrt{2x}\]

Answer 4

This will help you get started\[\Large x \sqrt{64} \sqrt{x^3} + 2x \sqrt{x} + 8 \sqrt{2x}\]x^3 is x^2x:\[\Large x \sqrt{64} \sqrt {x^2 \times x} + 2x \sqrt{x} + 8 \sqrt{2x}\] \[\Large x \sqrt{64} \sqrt {x^2 }\sqrt{x} + 2x \sqrt{x} + 8 \sqrt{2x}\]

Answer 5

x 8 sqrt x^2 sqrt x + 2x sqrt x + 8 sqrt 2x

Answer 6

So now you have\[\Large 8x \sqrt {x^2 }\sqrt{x} + 2x \sqrt{x} + 8 \sqrt{2x}\]

and what's the sqrt of x^2?

Answer 7

2x

Answer 8

Remember we went over this a few days ago. Sqrt of 4^2 is 4. Sqrt of 2^2 is 2. Sqrt of x^2 is...

Answer 9

oh x

Answer 10

\[\Large 8x \times x\sqrt{x} + 2x \sqrt{x} + 8 \sqrt{2x}\]

Answer 11

now what do I do?

Answer 12

Simplify that, and combine like terms

Answer 13

x times x is...?

Answer 14

2x

Answer 15

x + x is 2x. x*x is not 2x.

4*4 = 16, which is the same as 4^2.

x*x = ?

Answer 16

x^2

Answer 17

I think I got it tell me if im right, 16x x 2x+3x
16x x 5x
21x?

Answer 18

that's not right. it has to be one of the choices above :(

Answer 19

are you gonna help me @agent0smith ?

Answer 20

Sorry, i gotta go.

Answer 21

thanks for the help :(

Answer 22

\[\Large 8x ^2\sqrt{x} + 2x \sqrt{x} + 8 \sqrt{2x}\]

Answer 23

@jaderbrown still need to finish this...?

Answer 24

You can simplify a bit more depending on the answer choices

Answer 25

I tried to do it a few hours ago but I don't know if I got the right answer

Answer 26

and I don't remember what I put in for the answer