Question

Multiply
(5√6-10√5)(4√6+8√5)
I got so far
5(√6-2√5)4(√6+2√5) but am stuck here please help

Answer 1

=5(√6-2√5)4(√6+2√5)
=20(√6-2√5)(√6+2√5) difference of two squares

=20[ (√6)^2 - (2√5)^2 ]
=20[ 6 - 20]
= 20(-14)
=-280

Answer 2

oh i see now. Ok thanks. have a few problems like this but i can handle them from here thanks for helping me understand

Answer 3

my pleasure XD you are welcome at any time :)