Question

Evaluate x² + 4x + 1 when x = -3

Answer 1

Answer: -2

Explanation:

We can combine the fundamentals of mental math and the brain to calculate the problem when x is -2. You wake up noticing x is -2 and you instantly know the answer and solved in less than a second.

Answer 2

Substitute -3 to x

(-3)^2 + 4(-3) + 1

9 - 12 + 1

= -2