Factor of 64x^4y - 36x^2y

Now take 4x^2y as common

Now factorise the bracket portion using a^2 - b^2 = (a + b)(a - b) formula

Hope you could understand.

If you have any query, feel free to ask.

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510