Add: 2x² - 8x -9 and 3 x² + 8x-2

Step-by-step explanation:

We got to add these together so

2x^2-8x-9+3x^2+8x-2

the 2x^2 and 3x^2 add to 5x^2

the 8x and -8x cancel each other out

the -9 and -2 add to -11

so..

5x^2 - 11

I hope this helped :)

5x²-11

Step-by-step explanation:

2x²-8x-9+3x²+8x-2

2x²+3x²-8x+8x-9-2

5x²-11

hope it helps you

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fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

maybe showing the graph would

step-by-step explanation:

-387129 iq