Question

When the quadratic equation y = (x − 3)(2x + 7) is written in standard form, what is the value of the coefficient "b"?

2

−21

−1

1

Answer 1

-3*2 + 7
= 1

Answer 2

they want you to rewrite the equation in the form
y= a x^2 + b x + c

you can do this by multiplying out (x − 3)(2x + 7)
do you know how to do that? (Some people use FOIL)