Evaluate Using the Given Value -2x+3y^2 , x=1 , y=-1

$- 2 x + 3 y^{2}$ , $x = 1$ , $y = - 1$

Replace the variable $x$ with $1$ in the expression.

$- 2 \cdot 1 + 3 y^{2}$

Replace the variable $y$ with $- 1$ in the expression.

$- 2 \cdot 1 + 3 {(- 1)}^{2}$

Simplify each term.

Multiply $- 2$ by $1$ .

$- 2 + 3 {(- 1)}^{2}$

Raise $- 1$ to the power of $2$ .

$- 2 + 3 \cdot 1$

Multiply $3$ by $1$ .

$- 2 + 3$

Add $- 2$ and $3$ .

$1$