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castortr0y [4]
3 years ago
9

Solve for x: x^2-2x=15

Mathematics
1 answer:
Lyrx [107]3 years ago
5 0

Answer:

<h2>x = 5 , x = -3</h2>

Step-by-step explanation:

x^2 - 2x = 15

x^2 - 2x - 15 = 15 - 15          (Subtract 15 from both sides.)

x^2 - 2x -15 = 0                   (Simplify.)

<em />

<em>Set up & solve for a quadratic formula</em>

<h3><em>* I will solve for your first x</em></h3>

2 + root 64 / 2x 1   =   2 + root 64 / 2

root 64 = 8

= 2 + 8 / 2

= 10 / 2

= 5

<em>To solve for the second, follow the same pattern/formula for the first that I used to get 5.</em>

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prohojiy [21]

Answer:

Answer is in attached image.

Step-by-step explanation:

Given the expressions, for which we have to find the estimates as per the expressions on the left.

The given expressions are:

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Here, we need to find the rounded off numbers.

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Therefore, equivalent to 35 \times 23 is 40 \times 20

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Therefore, equivalent to 132 \div 168 is 130 \div 170.

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Therefore, equivalent to 17.3 \times 18.4 is 17.0 \times 18.0.

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The solution can be found in the attached image as well.

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2 years ago
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