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uranmaximum [27]
3 years ago
5

What is the value of 7x squared + 2x when x = 3

Mathematics
1 answer:
jolli1 [7]3 years ago
7 0

So we know this expression:

7x^2 + 2x.

And we know x = 3.

(7*3)^2 + (2*3)

21^2 + 6.

441 + 6

447

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Answer:

x =  \sqrt{10}

Step-by-step explanation:

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7x-3=-3+7x i neep help answer this please
erica [24]

Answer:

All real numbers are solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

7x− 3 = − 3 + 7x

Step 1: Simplify both sides of the equation.

7x − 3 = −3 + 7x

7x + −3 = −3 + 7x

7x − 3 = 7x − 3

Step 2: Subtract 7x from both sides.

7x− 3 −7x = 7x −3 −7x

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Step 3: Add 3 to both sides.

−3 + 3 = −3 + 3

0 =  0

7 0
3 years ago
Read 2 more answers
Please help me I don’t know
Morgarella [4.7K]

Step-by-step explanation:

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3 years ago
5x-1/5=7/3 <br> Find The LCD That would eliminate the fractions
photoshop1234 [79]

Answer:

x=\frac{7}{15}

Step-by-step explanation:

5x-\frac{1}{5} =\frac{7}{3}

5x - \frac{3}{15}  = \frac{35}{15}

5x - \frac{3}{15}  + \frac{3}{15} = \frac{35}{15}  + \frac{3}{15}

5x=\frac{35}{15}

\frac{5x}{5} } =\frac{\frac{35}{15}}{5}

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7 0
2 years ago
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