Factor x^2-5x-24 i need help to figure this out

Mathematics

1 answer:

Mrac [35]3 years ago

3 0

Answer:

(x-8)(x+3)

Step-by-step explanation:

1) Find out what are the factors of the constant?

2) Which of those add to equal the coefficient before the x value?

In this particular equation, we have the constant being 24. The first two factors that come to mind are 6 and 4, and 8 and 3. Since it is -24, we need one of these numbers to be negative.

Let's look at our "b" value, or the coefficient behind the x value, 5. Looking at our factors and thinking of addition (since one of them must be negative, it will most likely be subtraction instead of addition) I can see that

8+ −3=5

which is one of the factors of -24.

This means that we can factor our equation using these numbers, getting us the following:

(x−3)(x+8)

Hope this helped!

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Hoochie [10]

Answer:

(x, y) = (0, -14), (2, -8), (3, -5)

Step-by-step explanation:

Put the given values into the equation and solve.

x = 0

y = 3·0 -14 = -14

y = -8

-8 = 3x -14

6 = 3x . . . . . . add 14

2 = x . . . . . . . divide by 3

x = 3

y = 3·3 -14 = -5

The ordered pairs in your table are ...

(x, y) = (0, -14), (2, -8), (3, -5)

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Comment on the approach

In this problem, you are only asked for one x-value for a given y-value. If there were more, you would solve the equation generically (x = (y+14)/3) and use that to compute the desired values of x.

3 0

4 years ago

Read 2 more answers

Need the answer ASAP

V125BC [204]

Answer:

Approximately 201 squared inches.

Step-by-step explanation:

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The total area of the figure would be the area of the square plus the area of the semi-circle. Thus, find the area of each individual figure.

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