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Alenkinab [10]
3 years ago
6

Solve by using the perfect squares method. x2 + 4x + 4 = 0 a. 2 b. –2 c. 4 d. –4

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0
Solve your equation step-by-step.

x2+4x+4=0

Factor left side of equation.

(x+2)(x+2)=0

Set factors equal to 0.

x+2=0

or

x+2=0


x=−2

Stels [109]3 years ago
5 0
a^2+2ab+b^2=(a+b)^2 \\ \Downarrow \\
x^2+4x+4=x^2 + 2 \times 2 \times x +2^2=(x+2)^2 \\ \\
x^2+4x+4=0 \\
(x+2)^2=0 \\
x+2=0 \\
x=-2

The answer is B.
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Yuri scored a total of 665 points on seven tests.what was her average score?
Karolina [17]
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The ratio should look like this: 665/7


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You should get 95 points!

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Comment if you have questions!!!
5 0
3 years ago
Read 2 more answers
I need help - where would I move the 1, 10? ill give brainliest!
Ipatiy [6.2K]

Answer:

It's correct!!

Step-by-step explanation:

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Write the standard equation for the circle 30. Center (2,7), r=4. 31. Center (-6,-8), that passes treough (0,0)
Salsk061 [2.6K]
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so

30.

(x-2)^2+(y-7)^2=16

31.

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3 0
4 years ago
Subtract. 99.28 8.87​
Yuliya22 [10]
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Veseljchak [2.6K]

Answer:

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