Question

Which quadratic equation CANNOT be solved by extracting square roots?

A. 2x2 - 36 = 0
B. x2 = 9
C. x2 + 4x + 3 = 0
D. 5r2 = 80"

Answer 1

The quadratic equation that cannot be solved by extracting square roots is option C: x² + 4x + 3 = 0.

Step-by-step explanation:

The quadratic equation that cannot be solved by extracting square roots is option C: x² + 4x + 3 = 0.

To solve a quadratic equation by extracting square roots, the equation must be in the form x² = a. In option C, the equation is in the form x² + bx + c = 0 where b = 4 and c = 3. Therefore, it cannot be solved by extracting square roots.