Question

When the quadratic equation y = (x − 3)(4x + 2) is written in standard form, what is the value of the coefficient "a?"

Answer 1

FOIL

Answer 2

Actually, you only need to multiply the first terms.
\(ax^2+bx+c=0\)

Answer 3

so do u do x X 4x?

Answer 4

Yes.

Answer 5

\(\bf (x -3)(4x + 2) \implies x(4x + 2) + -3(4x + 2)\)

Answer 6

is it 4x-2+3 ?

Answer 7

\(4x \times x = 4x^2\)
You are looking for the coefficient of the \(x^2\) term.

Answer 8

ok thank you :)