2 years ago

Urgente!!! Doy 20 puntos

Mathematics

1 answer:

andre [41]2 years ago

4 0

Answer:

7
4
-7, 0, +9

Step-by-step explanation:

Hope this helps

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Rhett is solving the quadratic equation zero equals X2 minus 2X -3 using the quadratic formula which shows the correct substitut

Alina [70]

X^2-2x -3 =0
a =1 b =-2 and c = -3

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x = + 2 +/- sqrt [(4) - 4(-3)]
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--------------------------
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x = +2 +/- sqrt[16]
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x = +2 +/- (4)
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x = 2 + 4 or 2 -4
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x = 6/2 or -2/2

x = 3 or x = -1

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3 years ago

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3 years ago

Are these expressions equivalent? (Show work)<br> 14x+10+2x and 5x+3x+10+8x

balu736 [363]

Step-by-step explanation:

14x+10+2x

16x+10. Answer 1

5x+3x+10+8x

16x+10. Answer 2

So, both Answers are same, So the expressions are equivalent...

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2 years ago

Denise is checking to determine if the expressions x+x+6 and 4+3x-2 are equivalent. When x=4, she correctly found that both expr

gayaneshka [121]

The answer would be 8 when the value of x = 2

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3 years ago

Read 2 more answers

How do you solve this

love history [14]

Answer:

x=-2

Step-by-step explanation:

$\frac{1}{6{x}^{2} } = \frac{1}{2x} + \frac{7}{6 {x}^{2} } \\ \frac{7}{6 {x}^{2} } - \frac{1}{6{x}^{2} } + \frac{1}{2 {x} } = 0 \: \: \: \: \: ( - \frac{1}{6 {x}^{2} } \: throughout) \\ \frac{6}{6 {x}^{2} } + \frac{1}{2x} = 0 \: \: \: \: \: (simplify)\\ \frac{1}{ {x}^{2} } + \frac{1}{2x} = 0 \\ \frac{2 {x}^{2} }{ {x}^{2} } + \frac{2 {x}^{2} }{2x} = 0 \: \: \: \: \: ( \times 2 {x}^{2} \: throughout) \\ 2 + x = 0 \: \: \: \: \: (simplify)\\ x = - 2$

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3 years ago