Question

simplify the square root of 98x^5

Answer 1

can i write 98 as 49 * 2 ?

Answer 2

\[\sqrt{98x^5}= \sqrt{2*49*x^4*x}\]

Answer 3

uh i guess i think the answer is 2x^2 √7x is that right?

Answer 4

how did you factor out a 2???

Answer 5

\[2x ^{2}\sqrt{7x}\] is that right ??

Answer 6

it is incorrect... where did you get the 2 from?

Answer 7

and where did you get the 7 from

Answer 8

um i guess i did it wrong i have four choices that was the first one i tried

Answer 9

all of the choices involve a 7 and a 2

Answer 10

... ok then
what is the square root of 49?

Answer 11

I think it 7

Answer 12

good, that means you can factor out a 7
what is the square root of x^4?

Answer 13

could it be \[7x ^{2}\sqrt{2x}\]

Answer 14

\[\sqrt{98x^5}=\sqrt{49*2*x^4*x}=7\sqrt{2*x^4*x}\]

Answer 15

\[\sqrt{98x^5}=\sqrt{49*2*x^4*x}=7\sqrt{2*x^4*x}=7x^2 \sqrt{2x}\]

Answer 16

Thank you so much for your help i really really do appreciate it sorry im not really good at math