17,56=1-4,6^2+1-4,6+1

To verify if the equation \( 17,56 = 1 - 4,6^2 + 1 - 4,6 + 1 \) is true, let's first simplify the right side step-by-step.

1. Calculate \( 4.6^2 \): \[ 4.6^2 = 21.16 \]

2. Substitute \( 4.6^2 \) into the equation: \[ 1 - 21.16 + 1 - 4.6 + 1 \]

3. Now, combine the constants: \[ 1 + 1 + 1 = 3 \]

4. Calculate \( 3 - 21.16 - 4.6 \):

   • First, subtract \( 21.16 \): \[ 3 - 21.16 = -18.16 \]
   • Then, subtract \( 4.6 \): \[ -18.16 - 4.6 = -22.76 \]

So, the right side simplifies to: \[ -22.76 \]

Now let's compare both sides of the equation: \[ 17.56 \neq -22.76 \]

Thus, the equation \( 17,56 = 1 - 4,6^2 + 1 - 4,6 + 1 \) is not true.