Question

Tina is finding the quotient of. Is she correct? If not, what changes should be made?

Answer 1

For this case, we must find the quotient of

$(15x ^ 3 + 12x ^ 2-9x)$ divided by$3x$, to verify if Tina was correct.

So:

$\frac {15x ^ 3 + 12x ^ 2-9x} {3x} =\\\frac {15x ^ 3} {3x} + \frac {12x ^ 2} {3x} - \frac {9x} {3x} =\\5x ^ 2 + 4x-3$

So, Tina was wrong, she had to divide by 3x.

Answer:

Option B