Question

When the quadratic equation y = (x − 5)(2x + 3) is written in standard form, what is the value of the coefficient "b"?

7

−7

2

−15

I chose B because:

y = (x − 5)(2x + 3)

is

2x^2 + 3x - 10x + 15

which is

2x^2 - 7 + 15

Right?

Answer 1

@RadEn @tcarroll010

Answer 2

y =2x^2 + 3x -10x -15
y=2x^2 -7x -15
So,a =2,b=-7 and c=-15

Answer 3

YESHHH

Answer 4

tu

Answer 5

It's not 15 it's -15.

Answer 6

Meh still not part of the question xD thanks

Answer 7

Was just clearing it. :)