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Reil [10]
3 years ago
7

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Mathematics
1 answer:
brilliants [131]3 years ago
4 0

x^2+20=2x \\x^2-2x+20=0 \\x=\frac{2+\vee-\sqrt{-76}}{2}\Longrightarrow\boxed{x\notin\mathbb{R}}

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4x+8y=17<br> Solve for y
olasank [31]

Answer:

4x + 8y = 17  

Solve for y.

You want to get y on one side of the equal sign by itself so... you subtract 4x from both sides to get:

8y = -4x + 17

Then you divide both sides by 8 to get:

y= -4x/8 +17/8

Then simplify the fractions to get:

y = -2x/4 + 17/8

Step-by-step explanation:

3 0
3 years ago
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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar.
tankabanditka [31]

Answer:

Step-by-step explanation:

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2 years ago
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3 years ago
What times what equals 21 but adds up to -22
attashe74 [19]
Let "what" and "what" be A and B

Put this in an algebraic equation
A * B = 21
A + B = -22

A must = -21 and B must = -1   , this is because two negatives multiply to make a positive

A + B = -22    ,  -21 +-1 = -22 

4 0
3 years ago
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