Rewrite it in the form a^2 - b^2, where a = 7q^2 and b = 2
(7q^2)^2 - 2^2
Use the Difference of Squares; a^2 - b^2 = (a + b)(a - b)
= (7q^2 + 2)(7q^2 - 2)
Step-by-step explanation:
49q^4-4
(7q^2)^2-(2)^2
(7q^2+2)(7q^2-2)
