Evaluate -(5c)^0+7^1-2^2

$- {(5 c)}^{0} + 7^{1} - 2^{2}$

Simplify each term.

Apply the product rule to $5 c$ .

$- (5^{0} c^{0}) + 7^{1} - 2^{2}$

Anything raised to $0$ is $1$ .

$- (1 c^{0}) + 7^{1} - 2^{2}$

Multiply $c^{0}$ by $1$ .

$- c^{0} + 7^{1} - 2^{2}$

Anything raised to $0$ is $1$ .

$- 1 \cdot 1 + 7^{1} - 2^{2}$

Multiply $- 1$ by $1$ .

$- 1 + 7^{1} - 2^{2}$

Evaluate the exponent.

$- 1 + 7 - 2^{2}$

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

$- 1 + 7 - 1 \cdot 4$

Multiply $- 1$ by $4$ .

$- 1 + 7 - 4$

$- 1 + 7 - 4$

Simplify by adding and subtracting.

Add $- 1$ and $7$ .

$6 - 4$

Subtract $4$ from $6$ .

$2$

$2$

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