Question

factor the following_ 25a^4-14b^4​

Answer 1

25a^4 - 14b^4

= (5a^2)^2 - (√14b^2)^2

= (5a^2 - √14b^2)(5a^2+√14b^2)

by using a^2 - b^2 = (a-b)(a+b)