Answer:
1. (2x^2+x-1)
Step-by-step explanation:
expanding (2x^2-1)^2. multiplying (x-2) (1-2x)
= 4x^2-4x+1. = x-2x^2-2+4x
= -2x^2+5x-2
(4x^2-4x+1-2x^2+5x-2)
=2x^2+x-1
7.3 * 10^2= 730. Just move the decimal two laces to the right.
Answer:
Step-by-step explanation:
-31
Answer:
$3.50
Step-by-step explanation:
if you divide 42 by 12 you get 3.5
