Answer:
Step-by-step explanation:
3√6-10√2√3
=3√6-10√(2*3)
=3√6-10√6
=-7√6
The answer is A.
ANSWER
EXPLANATION
The given radical expression is
Recall and use
to obtain;
Simplify the second radicand.
We have two like surds so we can simplify to obtain;
area = 20x^2 - 10x - 30
5(4x2 - 2x - 6)
x=5,y=-2