Multiply: $$( x + 4 ) ( x + 7 )$$
A) $x ^ { 2 } + 11 x + 28$
B) $x ^ { 2 } + 28 x + 11$
C) $x ^ { 2 } + 4 x + 11$
D) $x ^ { 2 } + 7 x + 4$
E) $x ^ { 2 } + 14 x + 16$

Question

Quizplus · Accepted Answer

To multiply two binomials, we use the FOIL method, which stands for First, Outer, Inner, Last. 
\begin{align*}
(x + 4 )(x + 7) &= x(x) + x(7) + 4(x) + 4(7) \
&= x^2 + 7x + 4x + 28 \
&= x^2 + 11x + 28
\end{align*}
Therefore, the correct choice is A.

Multiply (x+4)(x+7)( x + 4 ) ( x + 7 )(x+4)(x+7)

Multiply $( x + 4 ) ( x + 7 )$