Use synthetic division to find (9x2−29x−28)÷(x−4).Write your answer in the form q(x)+d(x)r, where q(x) is a polynomial, r is an integer, and d(x) is a linear polynomial. Simplify any fractions._________
Q. Use synthetic division to find (9x2−29x−28)÷(x−4).Write your answer in the form q(x)+d(x)r, where q(x) is a polynomial, r is an integer, and d(x) is a linear polynomial. Simplify any fractions._________
Set up synthetic division: Set up synthetic division with 4 as the root from (x−4) and the coefficients from 9x2−29x−28 which are 9, −29, and −28.
Bring down first coefficient: Bring down the first coefficient, 9, to the bottom row.
Multiply and write result: Multiply 4 by 9 and write the result, 36, under the second coefficient, −29.
Add and write result: Add −29 and 36 to get 7. Write this number under the line in the second column.
Multiply and write result: Multiply 4 by 7 and write the result, 28, under the third coefficient, −28.
Add and write result: Add −28 and 28 to get 0. Write this number under the line in the third column. This is the remainder.
Identify quotient polynomial: The numbers on the bottom row are the coefficients of the quotient polynomial q(x). So, q(x)=9x+7.
Final answer without remainder: Since the remainder is 0, the final answer is just q(x) without any remainder term.
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