Connect with a knowledgeable community and get your questions answered on IDNLearn.com. Ask any question and receive timely, accurate responses from our dedicated community of experts.

Find the quotient and remainder using long division.

[tex]\[ \frac{-30x^2 + 60x - 38}{5x - 5} \][/tex]

The quotient is [tex]\(\square\)[/tex]

The remainder is [tex]\(\square\)[/tex]


Sagot :

To find the quotient and remainder of the division [tex]\(\frac{-30x^2 + 60x - 38}{5x - 5}\)[/tex], we will perform polynomial long division.

### Step-by-Step Long Division Process

1. Setup the Division:

Divide the polynomial [tex]\(-30x^2 + 60x - 38\)[/tex] by the polynomial [tex]\(5x - 5\)[/tex].

2. First Term of the Quotient:

Divide the leading term of the numerator [tex]\(-30x^2\)[/tex] by the leading term of the denominator [tex]\(5x\)[/tex]:
[tex]\[ \frac{-30x^2}{5x} = -6x \][/tex]
So, the first term of the quotient is [tex]\(-6x\)[/tex].

3. Multiply and Subtract:

Multiply [tex]\(-6x\)[/tex] by [tex]\(5x - 5\)[/tex]:
[tex]\[ (-6x) \cdot (5x - 5) = -30x^2 + 30x \][/tex]
Subtract this from the original polynomial:
[tex]\[ (-30x^2 + 60x - 38) - (-30x^2 + 30x) = 30x - 38 \][/tex]

4. Second Term of the Quotient:

Divide the new leading term [tex]\(30x\)[/tex] by the leading term [tex]\(5x\)[/tex]:
[tex]\[ \frac{30x}{5x} = 6 \][/tex]
So, the next term of the quotient is [tex]\(6\)[/tex].

5. Multiply and Subtract:

Multiply [tex]\(6\)[/tex] by [tex]\(5x - 5\)[/tex]:
[tex]\[ (6) \cdot (5x - 5) = 30x - 30 \][/tex]
Subtract this from the current polynomial:
[tex]\[ (30x - 38) - (30x - 30) = -8 \][/tex]

### Conclusion:

No further terms in the numerator are left to divide. Therefore, the process ends here.

- Quotient: The quotient is obtained from the terms we calculated during the process, so it is [tex]\(-6x + 6\)[/tex], which can be simplified as [tex]\([-6.0, 6.0]\)[/tex].
- Remainder: The remainder, which is left after the last subtraction, is [tex]\(-8\)[/tex], which can be written as [tex]\([-8.0]\)[/tex].

Thus, the final results are:

- The quotient is [tex]\((-6x + 6)\)[/tex], which corresponds to [tex]\([-6.0, 6.0]\)[/tex].
- The remainder is [tex]\(-8\)[/tex], which corresponds to [tex]\([-8.0]\)[/tex].

So, the quotient is [tex]\([-6.0, 6.0]\)[/tex] and the remainder is [tex]\([-8.0]\)[/tex].