I assume the way it's written is like this

4x^2 - 8x + 4 - (2x^2 - 3x + 7)

If that's the case, just combine like terms.

Let's begin with 4x^2. It has the same components as the -2x^2 (remember, since it's being subtracted in the original equation, the number is negative.)

4x^2 - 2x^2 = 2x^2

Now -8x and 3x (be careful, sometimes there's a minus sign in and out of the parentheses, this makes the number positive again

-8x + 3x = -5x

And then 4 and -7

4 - 7 = -3

So the simplified version is finally:

2x^2 - 5x - 3

Hope this helped! If you need me to explain anything, don't be afraid to ask.

5 0

3 years ago

Mauricio wants to fry 18 potatoes per hour for 3.5, point, 5 hours. He can fry 6 potatoes using each gallon of oil. How many gal

Alina [70]

Honestly I couldn't understand most of that but if one gallon of oil is needed to fry 6 potatoes, and he wants to fry 18 potatoes, then he'll end up using 3 gallons

6 0

3 years ago

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