fill in the missing values below one at a time to find the quotient when -16x^3 + 12x^2 + 28x - 21 is…

fill in the missing values below one at a time to find the quotient when -16x^3 + 12x^2 + 28x - 21 is divided by -4x + 3.
Answer
Explanation:
Step1: Divide first - term of dividend by first - term of divisor
To get the first term of the quotient $4x^{2}$, we divide $-16x^{3}$ (first term of $-16x^{3}+12x^{2}+28x - 21$) by $-4x$ (first term of $-4x + 3$), i.e., $\frac{-16x^{3}}{-4x}=4x^{2}$.
Step2: Multiply divisor by first - term of quotient
Multiply $-4x + 3$ by $4x^{2}$. We get $4x^{2}(-4x)=-16x^{3}$ and $4x^{2}(3)=12x^{2}$.
Step3: Find the second - term of the quotient
The remaining part of the dividend after subtracting the product of the first - term of the quotient and the divisor from the dividend is $(12x^{2}+28x - 21)-12x^{2}=28x - 21$. Divide the first term of this new polynomial $28x$ by the first term of the divisor $-4x$. So, $\frac{28x}{-4x}=-7$. The second - term of the quotient is $-7$.
Step4: Multiply divisor by second - term of quotient
Multiply $-4x + 3$ by $-7$. We have $-7(-4x)=28x$ and $-7(3)=-21$.
The completed table:
| $4x^{2}$ | $-7$ | |
|---|---|---|
| $-4x$ | $-16x^{3}$ | $28x$ |
| $+3$ | $12x^{2}$ | $-21$ |
Answer:
The quotient is $4x^{2}-7$.