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

well, have u tried it yet :) ?

Answer 2

yea i think its −6

Answer 3

can u show ur work? i think there is a little mistake somewhere...thats the value of coefficient c

Answer 4

oh lets me try again

Answer 5

good, ok :)

Answer 6

y = (x − 3)(4x + 2)
y = 4x² + 2x − 12x − 6
y = 4x² − 10x − 6
y = ax² + bx + c ⇒ b = −10

Answer 7

so its -10

Answer 8

quite right :)

Answer 9

thnx

Answer 10

np :)