Question

$\sqrt{x\y} + \sqrt{x\y} = 10\3$
please help​

Answer 1

Answer:

x is 5

y is 15

Substitute with your calculator and it works if you skip the square root part -such as 5/15 + 15/5 it gives you 10/3.

Step-by-step explanation:

See attachment. You'll see x to be 25, but when squared, it's actually 5 at the same time.

Also, y can't be negative because you would get an error on your calculator.

I hope this gives you a heard start and the skipping of square root was done due to the square root of 25 being 5. So, I was like there's no need to be one for the y; unless you square y, which is 15 x 15=225. I've tested that and it actually works.

As a result, the right answer for y is 225 and x is 25.

Square root included in calculation. As from my first answer, the difference was squaring each answer. I haven't changed the answers; so, you could understand where I'm coming from.

BTW that weird looking arc is a way I've been taught to multiply out a bracket. You're supposed to multiply them out, both the numerator and denominator. I know I've skipped a step, but remember all the rules you've learnt with surds and you'll be fine.

Never doubt yourself, I thought I couldn't to do this and I tried instead of skipping. As always, stay happy and safe!