Question

Describe the error(s) that occurred and show the correct solution.

Answer 1

`-x^(2)+4x`

Explanation:

we have

`(x^(2)+x)-(2x^(2) -3x)`

step 1

Eliminate the parenthesis

`x^(2)+x-2x^(2) +3x`

The symbol of the term 3x is incorrect, must be positive instead of negative

so

`-(-3x)=+3x`

Group terms that contain the same variable

`(x^(2)-2x^(2))+(x+3x)`

Combine like terms

`-x^(2)+4x`