Evaluate the expression.

–1 × (–9)^2 + –7

1 answer

To evaluate the expression –1 × (–9)^2 + –7, we will follow the order of operations.

  1. Evaluate (–9)^2: \[ (–9)^2 = 81 \]

  2. Now substitute back into the expression: \[ –1 × 81 + –7 \]

  3. Multiply –1 and 81: \[ –1 × 81 = –81 \]

  4. Now, substitute this result into the expression: \[ –81 + (–7) \]

  5. Adding –81 and –7: \[ –81 – 7 = –88 \]

Therefore, the evaluated expression is: \[ \boxed{–88} \]