Question

The roots of the equation $ax^2+ bx + c = 0$ are equal if:

• A. $$b^2=4ac$$
• B. $$b^2>4ac$$
• C. $$b^2<4ac$$
• D. $$b=4ac$$

Answer 1

Answer:

$$b^2=4ac$$

$b^2=4ac$