Question

When the quadratic equation y = (x − 5)(2x + 3) is written in standard form, what is the value of the coefficient "b"?
answers:
7

−7

2

−15

Answer 1

-7

Answer 2

can you explain?

Answer 3

\[2x ^{2}-7x-15\]

Answer 4

foil

Answer 5

ok. can you help me with another problem?

Answer 6

?

Answer 7

Identify which equation is a quadratic equation.

y = −5x − 3

y = −4x(x + 10) + 34

y + x2 = (x − 4)(x + 3)

y − 2 = (x − 2)(x2 + 1)

Answer 8

quadratic means that a variableis raised to the power of 2

Answer 9

ok
so the second one?

Answer 10

no you have to simplify them

Answer 11

there may be more than one

Answer 12

ok. thank you