4 years ago

Which is a factor of 5x2 − 15x − 20?

Mathematics

1 answer:

Sholpan [36]4 years ago

7 0

Answer:

x= -1, x=4

Step-by-step explanation:

5x²-15x-20

5x²-20x+5x-20=0

5x(x-4) +5(x-4)

(5x+5) (x-4) =0

5x=-5 or x=4

x= -5/5. or x=4

x= -1 or x=4

You might be interested in

Sue bought ten items at an average price of $3.60. The cost of eight of the items totaled $30. If the other two items were the s

Nina [5.8K]

$\frac{30+2x}{10}=3.60\ \ \ \ /\cdot10\\\\30+2x=36\ \ \ \ /-30\\\\2x=6\ \ \ /:2\\\\x=3\ (\$)$

$Answer:\$3\ (4)$

6 0

3 years ago

Read 2 more answers

5-2.5 , how is this 2.5?

Y_Kistochka [10]

Well 2.5 + 2.5 is 5 so 5 - 2.5 is 2.5

5 0

3 years ago

Read 2 more answers

Pls give the answer as soon as possible!

Mice21 [21]

Answer:

1 1/6 plz give brainiest when someone else answers thx

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

25-foot wire connects the top of a utility pole to a point on the ground located 7 feet away from the base of the pole.

marta [7]

Answer:

B. 24 ft.

Step-by-step explanation:

25 would be the hypotenuse of a triangle and 7 is a leg, so

7^2 + x^2 = 25^2

49 + x^2 = 625

x^2 = 576

x = 24 ft

8 0

3 years ago

Read 2 more answers

Anthony wants to purchase an electric guitar. The price of the guitar, with tax, is $599. He can save $25 per

Nataly_w [17]

Answer:

it will take him 24 months to save the guitar

Step-by-step explanation:

5 0

3 years ago