Question

WILL GIVE MEDALS . (:
What is the quotient: (3x2 + 4x - 15) ÷ (x + 3) ?


3x + 5
3x - 5
3x + 1
3x - 1, r = 1

Answer 1

\[\frac{3x^2 + 4x - 15}{x + 3}=\frac{3x^2 + 9x -5x- 15}{x + 3}\]\[=\frac{3x(x + 3) -5(x+3)}{x + 3}\]\[=\frac{(x + 3)(3x -5)}{x + 3}\]\[=3x -5\]

Answer 2

It's 3x-5 because

=2x^2+4x-15
=2x^2+9x-5x-15
=3x(x+3) - 5(x+3)
=(3x-5)(x+3) / (x+3)
=3x-5

Answer 3

Sorry, it's 3x^2 for the two first solutions... made an error