answersLogoWhite

0

In order to factor the sum of the cubes, we need to use this form a³ + b³ = (a + b)(a² - ab + b²). Let a³ = 27x³ and b³ = 343y³. Then, a = 3x and b = 7y. Perform substitution of these terms for the form, and we obtain:

27x3 + 343y3 = (3x + 7y)(9x2 - 21xy + 49y2)

User Avatar

Wiki User

12y ago

What else can I help you with?