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Dima020 [189]
3 years ago
13

Factor the trinomial below.9x^2+12x+4

Mathematics
2 answers:
Travka [436]3 years ago
7 0

Answer:

(3x+2)(3x+2)

Step-by-step explanation:

9x²+12x+4         Find two numbers that multiply to 9 and to other numbers that add to 4.

This numbers would be 3 and 2.

Since the 9 has an x², the 3 must be put with the x. Also the 2 must be positive because of all of the numbers being positive.

(3x+2)(3x+2)

If this answer is correct, please make me Brainliest!

stich3 [128]3 years ago
6 0

Answer:

9x^2+12x+4 = (3x+2)(3x+2)

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3 years ago
Math help will give brainliest<br>X is 7 but I got m angle D wrong
STatiana [176]
Answers: 
x = 7
The measure of angle D is 14 degrees

-----------------------------------------------
-----------------------------------------------

Angle C and angle D are complementary, which means they add to 90 degrees. 

(angle C) + (angle D) = 90
(12x-8) + (3x-7) = 90
12x-8 + 3x-7 = 90
(12x+3x) + (-8-7) = 90
15x-15 = 90
15x-15+15 = 90+15
15x = 105
15x/15 = 105/15
x = 7

So you have the correct x value. Nice work.

Now use this x value to find the measure of angle D

angle D = 3*x - 7
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5 0
3 years ago
50 POINTS !!!!!!!!
Bingel [31]

Answer:

Step-by-step explanation:

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3 years ago
1. 3x + x - 2x + 8 = 3x + x
FinnZ [79.3K]

Step-by-step explanation:

1. 3x+x-2x+8=3x+x

x-2x+8=x

x+8=x+2x

8=2x

8÷2=4

x=4

2. 2(2x+4)-2x=x+18

8+4x-2x=x+18

8+2x=x+18

2x=x+10

x=10

3. 2(x+3)+3x

2(5+3)+15

16+15

31

4. 3(2x)-3x+4=2x+5

6x-3x+4=2x+5

3x+4=2x+5

3x-2x+4=5

x=1

5. 3x+2x+x=x+6

6x=x+6

5x=6

x=6/5

6. 2(x+4)+x=16

2x+8+x=16

3x+8=16

3x=8

x=8/3

Hope I calculated it right you can check it in calculator

3 0
3 years ago
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