Question

3. What is the factored form of x2 – 196? (1 point)
(x – 14)2
(x + 14)2
(x – 28)(4x + 7)
(x – 14)(x + 14)

4. What is the factored form of 9x2 – 64? (1 point)
(3x – 8)2
(3x + 8)2
(3x – 8)(3x + 8)
(9x – 8)(x + 8)

5. What is the factored form of 49x2 – 56x + 16? (1 point)
(7x – 4)2
(7x + 4)(7x – 4)
(7x + 4)2
(7x – 8)2

Answer 1

x^2 - 14^2 = (x – 14)(x + 14)

9x2 – 64 = (3x)^2 - 8^2 = (3x -8) ( 3x + 8)

49x2 – 56x + 16
= (7x)^2 - 4^2 = (7x - 4) ( 7x + 4)

Answer 2

THANK UU :P