Question

How do you simplify `4x ^ { 2} + 17x - 4- x ^ { 2} + x + 12`?

Answer 1

`3x^2 +18x+8`

Explanation:

Identify the like terms and regroup the expression.

`color(red)(4x^2) color(blue)(+17x)-4color(red)(-x^2)color(blue)(+x)+12`

`=color(red)(4x^2-x^2)color(blue)( +17x+x)-4+12`

Add the like terms, keeping the variables the same.

`=color(red)(3x^2)color(blue)( +18x)+8`