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dezoksy [38]
3 years ago
5

How do you solve the first one

Mathematics
1 answer:
Dominik [7]3 years ago
6 0

Answer:

x= -2  x=-2

Step-by-step explanation:

move over the leading coefficient and you get

3x²+12x+12

the pull out a 3 because that's your gcf and 3 cannot equal zero so you can just do without id and you get

x²+4x+4

and when you factor that you get

(x+2)(x+2)

and when you set those equal to zero you get x= -2 and x= -2

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I hope this helps you


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7 0
3 years ago
A train picked up 20 people at station A. At station B 15 people got off and 3 people got on. How many people are on the train n
Step2247 [10]

Answer:

There are 8 people on the train.

Step-by-step explanation:

20 - 15 = 5

5 + 3 = 8

7 0
3 years ago
the length of a rectangular patio is 8 feet less than twice its width. the area of the patio is 280 square feet. find the dimens
jolli1 [7]

Answer:

The length of the rectangle 'l' = 20

The width of the rectangle 'w' = 14

Step-by-step explanation:

<u>Explanation</u>:-

Let 'x' be the width

Given data the length of a rectangular patio is 8 feet less than twice its width

2x-8 = length

The area of rectangle = length X width

Given area of rectangle = 280 square feet

x(2x-8) = 280

2(x)(x-4) =280

x(x-4) =140

x^2 -4x -140=0

x^2-14x+10x-140=0

x(x-14)+10(x-14)=0

(x+10)(x-14) =0

x = -10 and x = 14

we can choose only x =14

The width of the rectangle 14

The length of the rectangle 2x-8 = 2(14)-8 = 28 -8 =20

The length of the rectangle 'l' = 20

The width of the rectangle 'w' = 14

6 0
3 years ago
How do I hide a dead body!<br> I'm at a guy named Kevin!
Karolina [17]

Answer:

Do what the guy did in edgar allen poe's tell tale heart did! lol

Step-by-step explanation:

Dismember the body and hide it under the floorboards and say hes out of country :D

7 0
3 years ago
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X+4=2x<br><br> How do you solve it.
earnstyle [38]
Subtract the x on the left from the 2x on the right side
7 0
3 years ago
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