What is the first step in solving a quadratic equation using the quadratic formula?

Identify the values of a, b, and c.

Write the quadratic formula.

x = (-b ± √(b² - 4ac)) / 2a

To ensure the negative sign is also squared, yielding a positive result.

Grade 9th Grade · Math · 45 min

I can solve quadratic equations using the quadratic formula.

Kayla Jones · 4:00

Quadratic Formula Part 2

3 key concepts

1
The first step to solving a quadratic equation using the quadratic formula is to identify a, b, and c.
2
The quadratic formula is x = -b ± √(b² - 4ac) / 2a.
3
After plugging in a, b, and c, you must simplify and separate the equation into two to find both x-intercepts.

11 questions · Multiple choice & Short answer

Quick comprehension check

“Solve for x using the quadratic formula: x² + 4x - 5 = 0. Show all steps, including identifying a, b, and c.”

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