Question

Combine the following expressions.
https://clackamasweb.owschools.com/media/g_ima01_2014/2/2a89.gif

5x - 3 sqrt y + 1
5x + 3 sqrt y + 1

Answer 1

Are those the 2 choices?

Answer 2

yep

Answer 3

Okay so

\[\large 8x + \sqrt{1} - \sqrt{9y} - \sqrt{9x^2}\]

Assume 'x' is real here...

what do we know? we know that the square root of 1 = 1...

and we know the square root of 9 = 3...so we can simplify a little bit so far

\[\large 8x + 1 - 3\sqrt{y} - 3\sqrt{x^2}\]

what can we do next?

Answer 4

so 5x - 3 sqrt y + 1?

Answer 5

thanks:)))

Answer 6

No problem! :)