what is the answer to (-4b-3)4b-5b because my maths teacher says -16b^2-17b but i don’t think that’s right?

Your teacher is right.

Step-by-step explanation:

If you remember the Pemdas rule, you know you need to eliminate the brackets first by using distributive property of multiplication.

(-4b - 3) 4b - 5b

(-4b × 4b) - (3 × 4b) - 5b

- 16b^2 - 12b - 5b

- 16b^2 -17b

the quotient is 4x^2 - 27x + 167 with a remainder of -996

step-by-step explanation:

in synthetic division, use -6 as the divisor and use the coefficients {4, -3, 5, 6}:

-6     )   4     -3     5     6

                -24   162 -1002

          4   -27   167   -996

thus, the quotient is 4x^2 - 27x + 167 with a remainder of -996.

note:   your "4x°-3x+5x+6" is ambiguous / incomplete.   i had to assume that you meant '4x^3 - 3x^2 + 5x + 6."

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.