Simplify (-x^2+x)+(4x^2-x-1)

$(- x^{2} + x) + (4 x^{2} - x - 1)$

Step 1

Remove parentheses.

$- x^{2} + x + 4 x^{2} - x - 1$

Step 2

Combine the opposite terms in $- x^{2} + x + 4 x^{2} - x - 1$ .

Subtract $x$ from $x$ .

$- x^{2} + 4 x^{2} + 0 - 1$

Add $- x^{2} + 4 x^{2}$ and $0$ .

$- x^{2} + 4 x^{2} - 1$

Step 3

Add $- x^{2}$ and $4 x^{2}$ .

$3 x^{2} - 1$