Question

Divide –2x³ + 21x² – 20x – 12 by (x – 3)

Answer 1

use synthetic division....

Answer 2

I haven't learned how to do that yet :/

Answer 3

by direct divsion ??

Answer 4

you can use long division directly divide

Answer 5

I suggest to use synthetic division. first we change the sign of the -3 in x - 3 to make it 3.

then we solve it

3l -2 21 -20 -12
l -2 -6 45 75
l -2 15 25 63

so the answer is –2x^2 + 15x + 25 and remainder 63
Hope this helps