Question

Simplify the following

I need help how to set it up and why you got the answer

Answer 1

√(6-3t)²-(4+t)² = 2√2t²-11t+5

Explanation:

Expand (6-3t)²-(4+t)² : 8t²-44t+20

=√8t²-44t+20

Factor 8t²-44t=+20: 4(2t²-11t+5)

=√4(2t²-11t+5)

=√4√2t²-11t+5

√4=2

So the answer is 2√2t²-11t+5. Hope this helps you.