Question

I’m stuck on this question please help x

Answer 1

Answer:

a = -3 and b=5

Step-by-step explanation:

Given that 10 can be written as 2*5 or √2*√2*5, and √18 can be written as √(2*9) or √2*√9 or 3√2, you can write the fraction as:

$\frac{5\cdot\sqrt2\cdot\sqrt2-3\sqrt2}{\sqrt2}$

So getting rid of the √2 factor, you get 5√2 - 3, so a=-3 and b=5