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Specifically give the quotient and the remainder for the associated division and the value of P(2).

Specifically give the quotient and the remainder for the associated division and the-example-1
User Ggeop
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1 Answer

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The quotient is 4x² + 6x + 9 and the remainder is 23.

So, P(2) = 4(2)² + 6(2) + 9 + 23 = 4(4) + 12 + 9 + 23 = 16 + 12 + 9 + 23 = 60.

Hence, P(2) equals 60.

The remainder theorem states that if a polynomial P(x) is divided by (x-a), the remainder is equal to P(a).

To find P(2) for the given polynomial P(x) = -2x² + 4x³ - 3x + 5, we need to divide the polynomial by (x-2) using long division.

Here is the step-by-step process:

1. Write the polynomial in descending order:

P(x) = 4x³ - 2x² - 3x + 5

2. Set up the long division:

2x² - x + 2

---------------------

(x-2) | 4x³ - 2x² - 3x + 5

3. Divide the first term of the polynomial by the first term of the divisor:

4x³ / (x-2) = 4x²

4. Multiply the divisor by the quotient:

(x-2) * 4x² = 4x³ - 8x²

5. Subtract the result from the original polynomial:

(4x³ - 2x² - 3x + 5) - (4x³ - 8x²) = 6x² - 3x + 5

6. Bring down the next term:

6x² - 3x + 5

7. Divide the first term of the new polynomial by the first term of the divisor:

6x² / (x-2) = 6x

8. Multiply the divisor by the new quotient:

(x-2) * 6x = 6x² - 12x

9. Subtract the result from the previous polynomial:

(6x² - 3x + 5) - (6x² - 12x) = 9x + 5

10. Bring down the last term:

9x + 5

11. Divide the first term of the new polynomial by the first term of the divisor:

9x / (x-2) = 9

12. Multiply the divisor by the new quotient:

(x-2) * 9 = 9x - 18

13. Subtract the result from the previous polynomial:

(9x + 5) - (9x - 18) = 23

The remainder is 23.

Therefore, the quotient is 4x² + 6x + 9 and the remainder is 23.

So, P(2) = 4(2)² + 6(2) + 9 + 23 = 4(4) + 12 + 9 + 23 = 16 + 12 + 9 + 23 = 60.

Hence, P(2) equals 60.

User Praveer Kumar
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