-1/3b = 9
b = 9 * -3
b = -27
Answer:
12
Step-by-step explanation:
Plug the given values into the equation to solve.
a² - b²
(4)² - (-2)²
16 - 4
12
3
3/5 x 3 = 9/5
9/5 = 1 4/5
Divide and simplify radical expressions that contain a single term.
i solved that here
http://lianmath.com/what-is-the-turning-of-the-graph-of-fx-x3-2/