Expand and simplify:
(2x+1)3 + 3(x+1)3

show the working.

answer:

15x+12

(2x+1)3+3(x+1)

(x+1)3+3(1)

6

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

mia khalifa

step-by-step explanation: