Which expressions are equivalent to 16x4 − 64? check all that apply.
16x4 + 16x – 16x – 64
16x4 – 8x – 8x – 64
(4x2 + 8)(4x2 – 8)
16(x2 + 2)(x2 – 2)
4(4x4 – 8)

A. 16x^4 + 16x - 16x - 64

C. (4x^2 + 8)(4x^2 - 8)

D. (16x^2 + 209x^2 - 2)

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

300pi

step-by-step explanation: