Evaluate the expression.

Question

4–1–2^2

Answer 1

To evaluate the expression \( 4 - 1 - 2^2 \), we need to follow the order of operations (also known as PEMDAS/BODMAS).

1. Evaluate the exponentiation: \[ 2^2 = 4 \] Now, substitute this back into the expression: \[ 4 - 1 - 4 \]

2. Perform the subtraction from left to right:

   • First, calculate \( 4 - 1 \): \[ 4 - 1 = 3 \]
   • Now, subtract \( 4 \) from \( 3 \): \[ 3 - 4 = -1 \]

Thus, the value of the expression \( 4 - 1 - 2^2 \) is \(\boxed{-1}\).