Question

Use FOIL to multiply the two binomials.

(b + 3)(b + 9)

A.
b^2 + 12b + 27

B.
b^2 + 6b – 27

C.
b^2 – 6b – 27

D.
b^2 – 27

i got C is that correct?

Answer 1

b^2+9b+3b+27
=b^2+12b+27

Answer 2

ohh ok so its A?

Answer 3

Yes

Answer 4

\[\large(\overbrace{\overbrace{\color{orange}a
+\underbrace{\color{cornflowerblue}b)(\color{seagreen}c}_{\text{Inside}}}^{\text{First}}
+\color{brown}d}^{\text{Outside}})
=\overbrace{\color{orange}a\color{seagreen}c}^\text F
+\overbrace{\color{orange}a\color{brown}d}^\text O
+\underbrace{\color{cornflowerblue}b\color{seagreen}c}_\text I
+\underbrace{\color{cornflowerblue}b\color{brown}d}_L\\
\large\qquad\quad \underbrace{\qquad\qquad}_{\text{Last}}\]

Answer 5

How did you...nice :)