Question

Factor completely: x2 – 64
(x – 64)(x + 1)
(x – 64)(x – 1)
(x – 8)(x – 8)
(x – 8)(x + 8)

Answer 1

this is a difference of two squares

Answer 2

Ahhh! Difference of squares:

\( \color{Black}{\Rightarrow a^2 - b^2 = ( a + b)( a - b) }\)

Answer 3

note that in difference of two squares \[a^2 - b^2 = (a+b)(a-b)\]

Answer 4

(x-8)(x+8)

Answer 5

yes

Answer 6

Factor completely: 4x2 – 121
(2x – 11)(2x + 11)
(2x – 11)(2x – 11)
(4x – 121)(x + 1 )
(4x – 121)(x – 1)