Answer:
its a
Step-by-step explanation:
a x 4 = a^4
b^3 x 4 = b^12
Answer:18x cubed +8x squared
Step-by-step explanation:
Let s represent speed.

To graph it, draw a number line. Show zero, 20, 50 and arrowheads at both ends. Draw closed circles at 20 and 50 and shade in between.
Step-by-step explanation:
The given quadratic equation is :

We need to solve the given equation. The formula used to solve a quadratic equation is :

We have, a = 3, b = -2 and c = 5
So,

Hence, this is the required solution.