Victoria was given the expression -3x + xᶺ2 – 8 + 4x – 3xᶺ2 – 2 and asked to simplify it. how can she simplify the expression?

-2x^2 +x -10

Step-by-step explanation:

-3x + xᶺ2 – 8 + 4x – 3xᶺ2 – 2

Combine like terms

x^2 - 3x^2 -3x+4x -8-2

-2x^2 +x -10

Step-by-step explanation:

The expression is a polynomial of degree 2, because the highest exponent of the variable "x" is 2.

Then, to simplify the expression, Victoria needs to:

Order the expression:

 Add the like terms:

Then, the simplified expression is finally:

75 pounds

Step-by-step explanation:

(x) + (x) + (x+20) = 185

3x + 20 = 185

3x = 165

x = 55

Large dog = 55 + 20 = 75