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3 years ago

Factor completely. 3x^2-3x-18 HINT: Factor out the greatest common factor first.

Mathematics

1 answer:

lubasha [3.4K]3 years ago

3 0

Answer:

3(x - 3)(x + 2)

Step-by-step explanation:

take out a common factor of 3 from each term

= 3(x² - x - 6)

to factor the quadratic consider the factors of - 6 which sum to - 1

These are - 3 and + 2, hence

3x² - 3x - 18 = 3(x - 3)(x + 2) ← in factored form

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Pani-rosa [81]

8x-13

1. Distribute 6 to both 2x and -3
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2. Combine like terms
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3 years ago

What is a b c in 3x^2+4=5x

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Answer:

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Step-by-step explanation:

3x^2+4=5x

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3 years ago

In triangle A B C, which angle is the included angle between segment A B and segment B C?

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Answer:

Step-by-step explanation:

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3 years ago

You have D dollars to buy fence to enclose a rectangular plot of land (see figure at right). The fence for the top and bottom co

alex41 [277]

The perimeter of the rectangular plot of land is given by the expression below

$P=2x+2y$

On the other hand, since the available money to buy fence is D dollars,

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Furthermore, the area of the enclosed land is given by

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Solving the second equation for x,

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Substituting into the equation for the area,

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To find the maximum possible area, solve A'(y)=0, as shown below

$\begin{gathered} A^{\prime}(y)=0 \\ \Rightarrow\frac{D}{8}-\frac{3}{2}y=0 \\ \Rightarrow\frac{3}{2}y=\frac{D}{8} \\ \Rightarrow y=\frac{D}{12} \end{gathered}$

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1 year ago

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alisha [4.7K]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers