Question

Multiply and simplify if possible.

Answer 1

?

Answer 2

\[\sqrt{7x}(\sqrt{x-7}\sqrt{7})\]

Answer 3

\[\sqrt{7x}(\sqrt{7(x-7)})\]You can multiply the square-roots together since they have the same root, and you can just take them as a simple multiplication. helps?

Answer 4

\[a. x \sqrt{7}-49\sqrt{x} b.x \sqrt{7}-x \sqrt{49} c. -\sqrt{42x}\] my chosies

Answer 5

what did you get though?

Answer 6

\[\sqrt{7x} -49x\] but got it wrong

Answer 7

\[\sqrt{7x}(\sqrt{7x-49}) \rightarrow \sqrt{7x(7x-49)}\]
\[\sqrt{49x^2-343x}\]Got the same one?