Question

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

Answer 1

\[y=ax^2+bx+c\]

Answer 2

that's standard form.

Answer 3

you have to distribute out \[y = (x − 3)(4x + 2) \]

Answer 4

4x^2 -10x -6
-10 is b ( use the standard form)

Answer 5

simply multiply term by term,and compare with ax*x+bx+c...so 4x*x+(-12+2)x-6...so b is -10

Answer 6

wow give answers much guys?

Answer 7

y = (a+b)(m+n)
= am + an + bm + bn
= am + (an + bm) + bn

Answer 8

@hartnn Please try to engage the user in learning, instead of just giving them the answer in the future. Thanks.

Answer 9

roger that

Answer 10

sadly @shayyeatsrainbows 's not engaging either...