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Lelu [443]
2 years ago
10

Evaluate the following when x=3

Mathematics
2 answers:
Eva8 [605]2 years ago
6 0
Yes you needy to add them
blondinia [14]2 years ago
6 0

Answer:

y=-192

Step-by-step explanation:

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Consider the quadratic equation x2=4x-5. How many solutions does the equation have
Norma-Jean [14]
The quadratic formula is =(-b+-sqrt(b^2-4ac))/2a
as you notice the term under the square root is b^2-4ac if it is postive then the equation clearly will have two real soultions if it is negative then the equation will have two imaginary soultion if it is zero then the the equation will have one soultion
so let us calculate b^2-4ac for our given equation
x^2=4x-5 so let us write it in general form which is ax^2+bx+c=0
subtracting 4x from both sides
x^2-4x=-5
adding 5 to both sides
x^2-4x+5=0
a=1,b=-4,c=5
b^2-4ac=(-4)^2-4(1)(5)=16-20=-4
which means the equation has two imaginary soultions
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Step-by-step explanation:

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I duno what the answer is but use the calculater
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22. Solve for x.<br> 95°<br> +9<br> 24°
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I would say its 24 hope this helps

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When fractions share the same number on the bottom they have a?
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