Question

(4y+3)(8y-1)

Answer 1

FOIL...multiply the first terms...multiply outside terms...multiply inside terms...multiply last terms

Answer 2

32y2 +28y -3...

Answer 3

\(\begin{align}
\text{F.O.I.L. = First Outside Inside Last}\\
\hline \\
&(ax+b)(cx+d)\\ \ \\
\text{First:}&(\color{blue}{ax}+b)(\color{blue}{cx}+d)\to \color{blue}{ax}\cdot\color{blue}{cx}=\color{blue}{acx^2}\\
\text{Outside:}&(\color{green}{ax}+b)(cx+\color{green}{d})\to \color{green}{ax}\cdot\color{green}{d}=\color{green}{adx}\\
\text{Inside:}&(ax+\color{red}{b})(\color{red}{cx}+d)\to \color{red}{b}\cdot\color{red}{cx}=\color{red}{bcx}\\
\text{Last:}&(ax+\color{orange}{b})(cx+\color{orange}{d})\to \color{orange}{b}\cdot\color{orange}{d}=\color{orange}{bd}\\
\hline \\
(ax+b)(cx+d)&=\color{blue}{acx^2}+\color{green}{adx}+\color{red}{bcx}+\color{orange}{bd}
\end{align}\)

Answer 4

What's your question?

Answer 5

lol i think i have reason to believe that was copy-pasted @ParthKohli ?

Answer 6

ok?

Answer 7

Lol yes @lgbasallote ;)

All rights go to @nbouscal

Answer 8

i knew it was impossible to write a 20 line latex in 3 seconds