<span>[4b-4]+3-b^2]+2b^3 ;b=2
= </span><span>[4(2)-4]+3-2^2]+2(2^3)
=</span> [8-4] + 3 - 4]+2(8)
= [4 + 3 - 4]+2(8)
=3 + 16
=19
answer is <span>A. 19</span>
You need to get x by itself. Add 6 to both sides.
x = 14
• Answer:
99
• Step-by-step explanation:
Hi there !
use formula a² - b² = (a-b)(a+b)
18² - 15² =
= (18 - 15)(18 + 15)
= 3×33
= 99
Good luck !
Answer:
14
Step-by-step explanation:
3 1/2 × 4
Convert 3 1/2 to an improper fraction.
7/2 × 4
7/2 × 4/1
Multiply.
(7× 4) / (2 × 1)
28 / 2
= 14