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yawa3891 [41]
3 years ago
8

What is the first step in solving x^2+2x+3=0

Mathematics
2 answers:
Westkost [7]3 years ago
7 0
First subtract three from both sides. then you have x^{2} +2x=-3 and you solve from there
Neporo4naja [7]3 years ago
6 0
Is the question asking by completing the square? 
X^2+2X+3=0
X^2+2x+1+2=0
(x+1)^2+2=0
(x+1)^2=-2
x+1=squr root 2i or x+1=-sqr root 2i
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Answer:

8! or 456 ways

Step-by-step explanation:

8 x 7 x 6 x 5 x 4 x 3 x 2 = 456

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Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses to from which to choose. (a) Ini
prisoha [69]

Answer:

So the number of total combinations is 35.

Step-by-step explanation:

We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.  

Therefore, she have total 7 courses.  

So, we calculate the number of combinations to choose 4 out of 7  courses.

We get:

C_4^7=\frac{7!}{4!(7-4)!}=35\\

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7 0
3 years ago
How can logarithms be graphed with different bases?
yan [13]
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3 years ago
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Tems11 [23]

Answer:

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Step-by-step explanation:

5x^2+25

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Therefore the equation will be represented by

5(x^2+5)

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