Question

multiply
(x^7-x^4)(x^7+x^4)

Answer 1

x⁷=a ; x⁴=b => (a+b)(a-b)=a² - b²
=> x¹⁴ - x⁸

Answer 2

so the answer is x^14 - x^8

Answer 3

Yes

Answer 4

0779olive this answer is not in parentheses correct