Which expression is equivalent to 2x^2-18

1 answer:

3 0

You can factor out the two, so you get 2(x^2-9). You can simplify it more because it is a difference of squares, so it should be 2(x-3)(x+3)

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B) Solve x ^ 2 + 5x - 14 = 0

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$x^2 +5x -14 =0\\\\\implies x^2 +7x -2x -14 =0\\\\\implies x(x+7) -2(x+7)=0\\\\\implies (x-2)(x+7) =0\\\\\implies x =2~~ \text{or}~~ x =-7$

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3 years ago

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X-2y=7<br> -x+3y=-4<br> show your work

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Step-by-step explanation:

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a survey of 12,089 men in a particular country found that46.1% received a flu vacvine for a recent flu season identify the popul

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The population is all men in this <span>particular country.

The sample is the 12,089 men in this </span><span>particular country that conduct the survey.</span>
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3 years ago

One can convert temperature from kelvin into fahrenheit using the formula . what is the temperature in kelvin corresponding to f

emmainna [20.7K]

One can easily convert the temperature using temperature conversion formula given below

K = $\frac{5(F - 32)}{9} + 273.15$

where F = degrees in Fahrenheit

K = degrees in Kelvin

<h3>What is temperature conversion? </h3>

The measuring units of the temperature recorded in a particular unit can be converted with the aid of a temperature converter.

The degree of heat or cold that a solid, liquid, or gas has is expressed by its temperature.

A thermometer is used to determine temperature. Although the SI unit for temperature is Kelvin (K), most people measure temperature in Centigrade or Celsius (°C) and Fahrenheit (°F).

Know more about temperature conversion brainly.com/question/13421795

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