Evaluate 7x^-4y^0

$7 x^{- 4} y^{0}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$7 \frac{1}{x^{4}} y^{0}$

Combine $7$ and $\frac{1}{x^{4}}$ .

$\frac{7}{x^{4}} y^{0}$

Simplify the expression.

Anything raised to $0$ is $1$ .

$\frac{7}{x^{4}} \cdot 1$

Multiply $\frac{7}{x^{4}}$ by $1$ .

$\frac{7}{x^{4}}$