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kicyunya [14]
3 years ago
11

2 Find the product. (3x+6) (2-x)

Mathematics
2 answers:
Amanda [17]3 years ago
6 0
Multiply the like terms

(3x * -x) times (6 *2)
-3x. Times 12
ipn [44]3 years ago
4 0

Answer:

-3x^{2} +12

Step-by-step explanation:

Apply foil method.

(3x)(2)+(3x)(-x)+(6)(2)+(6)(-x)

6x-3x^{2} +12-6x\\

6x and -6x cancels out

-3x^{2} +12

Hope this helps! :]

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I don't get this can u please show me step by step
Murljashka [212]
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\textit{something}&&\textit{varies inversely to}&\textit{something else}\\ \quad \\
\textit{something}&=&\cfrac{{{\textit{some value}}}}{}&\cfrac{}{\textit{something else}}\\ \quad \\
y&=&\cfrac{{{\textit{k}}}}{}&\cfrac{}{x}
\\\\
&&y=\cfrac{{{  k}}}{x}&\impliedby 
\begin{array}{llll}
k=\textit{constant}\\
\qquad \textit{of variation}
\end{array}
\end{array}\\\\
-----------------------------\\\\


\bf y=\cfrac{k}{x}\qquad 
\begin{cases}
y=0.2\\
x=0.3
\end{cases}\implies 0.2=\cfrac{k}{0.3}\implies 0.2\cdot 0.3=k
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8 0
3 years ago
Eliminate the parameter,t, in the parametric equation, x=6cos t, and y =3 sin t
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X = 6 cos(t) 
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Taking squares of both equations we get:

( \frac{x}{6})^{2}=sin^{2} (t) \\  \\ 
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Adding both the equations, we get:

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6 0
3 years ago
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3 years ago
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3 years ago
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Step-by-step explanation:

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3 0
3 years ago
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