the square root of 25x^2-40xy+16y^2

Answer 1

note that the first and last terms are perfect squares. So first, I'd try
(5x-4)^2
since 40 = 2*5*4, this works fine, since
(a-b)^2 = a^2-2ab+b^2

Answer 2

What is the answer?

Answer 3

What isthe answer

Answer 4

LEMMA

Answer 5

I'm not sure,but I'd try beza's idea

Answer 6

The square root of 25x²–40xy+16y²

Answer 7

Write the answer

Answer 8

i did have any solution