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babymother [125]
3 years ago
6

What are 2 binomials that are factors of this trinomial? x^2-x-20

Mathematics
2 answers:
S_A_V [24]3 years ago
8 0

Answer:

(x-5) (x+4)

Step-by-step explanation:

x^2-x-20

What two terms multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

(x-5) (x+4)

Radda [10]3 years ago
7 0

Answer:

( x - 5 )( x + 4 )

Step-by-step explanation:

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St lies on the coordinate plane with s located at (3.2). The midpoint of dt is z(3,9) state the location of the endpoint T thank
77julia77 [94]

Answer:

T = (3,16)

Step-by-step explanation:

The midpoint formula is just another version of the pythagorean theorem, and it states that the midpoint between (x1,y1) and (x2,y2) is \left(\frac{x_1+x_2}{2}\right),\:\left(\frac{y_1+y_2}{2}\right)

Substituting what we know:

endpoint S is (3,2) and endpoint T is (x2,y2)

Midpoint Z is (3,9). We will apply the formula -- backwards.

\left(\frac{3+x_2}{2}\right)=3, solving with algebra we get x2 = 3

So the x-coordinate of endpoint T is 3.

\left(\frac{2+y_2}{2}\right)=9\quad, solving with algebra, we get y2 = 16.

So the y-coordinate of endpoint T is 16.

So the location of endpoint T is (3,16)

4 0
3 years ago
What are the rational roots of the polynomial f(x) = 20x^4 + x^3 +8x^2 + x-12
Natali5045456 [20]

Answer:

x = 3/4 and x = -4/5

Step-by-step explanation:

20x⁴ + x³ + 8x² + x − 12

Group:

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Factor:

4 (5x⁴ + 2x² − 3) + x (x² + 1)

4 (5x² − 3) (x² + 1) + x (x² + 1)

(x² + 1) (4 (5x² − 3) + x)

(x² + 1) (20x² + x − 12)

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So the rational roots are x = 3/4 and x = -4/5.

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3 years ago
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cestrela7 [59]

Answer:

B

Step-by-step explanation:

The number is x and you want 6 of that, so that makes 6x

You want 8 less of this, so subtract 8

Therefore you get 6x - 8

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2 years ago
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