Question

Solve 7 square root of 13 x end root minus 15 square root of 2 x end root plus 2 square root of 13 x end root minus 4 square root of 2 x

Answer 1

what's an end root?

Answer 2

Just ignore the end part

Answer 3

\[7\sqrt{13x}-15\sqrt{2x}+2\sqrt{13x}-4\sqrt{2x},\]\[9\sqrt{13x}-19\sqrt{2x}...\]and this is equal to?

Answer 4

i guess just simplify?

Answer 5

but you said solve, so is there an equation?

Answer 6

Yeah but I don't know how to do it. Do you just add/subtract like you would 2+2 or 2-2?

Answer 7

just add/subtrac like terms...

Answer 8

alright

Answer 9

You can only do that to like-terms. For example, in your case,\[7\sqrt{13x}-15\sqrt{2x}+2\sqrt{13x}-4\sqrt{2x}\]is the same as\[\sqrt{13x}(7+2)+\sqrt{2x}(-15-4).\]Do you see this?

Answer 10

Yes

Answer 11

so that answer given by @pre-algebra in the last line is correct

Answer 12

By the way, your problem cannot be simplified any further than\[\sqrt{x}(9\sqrt{13}-19\sqrt{2})\]

Answer 13

okay thank you so much