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Lostsunrise [7]
3 years ago
11

What are the factors of the expression? 7⋅(x+y) plz helpplz plz help asap

Mathematics
2 answers:
Firlakuza [10]3 years ago
6 0
To simplify, distribute the 7 throughout the set of parenthesis. This means that you are multiplying the 7 by each term in the set of parenthesis

7 x X = 7x

7 x Y = 7y

So the equation would look like:

7x + 7y
ASHA 777 [7]3 years ago
4 0
7*(x+y)
7x+7y
or x*x*x*x*x*x*x*y*y*y*y*y*y*y if you want.
the factors are 7, x and y

Hope this helps :)
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The quadratic equation can now be solve using factorization method:

\begin{gathered} 3x^2-5x-50=0 \\ 3x^2-15x+10x-50=0 \\ 3x(x-5)+10(x-5)=0 \\ (3x+10)(x-5)=0 \\ 3x+10=0\text{ }or\text{ }x-5=0 \\ 3x=-10\text{ }or\text{ }x=5 \\ x=-\frac{10}{3}\text{ }or\text{ }x=5 \end{gathered}

Since the dimension can not be negative, hence the value of x will be = 5.

Therefore, the dimensions of the rectangle will be:

\begin{gathered} Length=3x-5=3(5)-5=15-5=10\text{ }ft \\  \\ Width=x=5\text{ }ft \end{gathered}

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