Substitute Values into Quadratic Formula

Rohan, Arjun, and Ava are on a mission to solve a mysterious quadratic equation that they found in their math textbook. Can you help them figure out the steps using the quadratic formula?

• The steps to solve a quadratic equation using the quadratic formula are: Write down the quadratic equation. Identify the values of x, y, and z. Substitute the values into the quadratic formula. Simplify the equation. Solve for x.

• The steps to solve a quadratic equation using the quadratic formula are: Write down the quadratic equation. Identify the values of p, q, and r. Substitute the values into the quadratic formula. Simplify the equation. Solve for x.

• The steps to solve a quadratic equation using the quadratic formula are: Write down the quadratic equation. Identify the values of a, b, and c. Substitute the values into the quadratic formula. Simplify the equation. Solve for x.

• The steps to solve a quadratic equation using the quadratic formula are: Write down the quadratic equation. Identify the values of m, n, and o. Substitute the values into the quadratic formula. Simplify the equation. Solve for x.

Answer explanation

The steps to solve a quadratic equation using the quadratic formula are: 1. Write down the quadratic equation. 2. Identify the values of a, b, and c. 3. Substitute the values into the quadratic formula. 4. Simplify the equation. 5. Solve for x.

e

d

c

b

a

-11

-2

(-11)

(-2)

-15

tip: values without ( ) go into the formula first, values with ( ) go in second.Drag and drop the values of a, b, and c into the quadratic formula for:

e

d

c

b

a

-8

27

(27)

(0)

0

tip: values without ( ) go into the formula first, values with ( ) go in second.Drag and drop the values of a, b, and c into the quadratic formula for:

e

d

c

b

a

-9

7

6

(-9)

(7)

Fill in the formula x^2-6x-40=0 ​ BLUE=​ (a)   RED= ​ (b)   GREEN= ​ (c)  

• -6

• 1

• -40

• -1

• 6

• 40

• -6

• 1

• -40

• -1

• 6

• 40

Fill in the formula =​ = ​ = ​

• -6

• 1

• -40

• -1

• 6

• 40

Pepito, Juanito, Mario, and Pedro are all trying to solve the quadratic equation by using the quadratic formula.
Which one  plugs in the values of a, b, and c correctly into the formula?

Given the Quadratic Equation: 2x² + 5x + 3 = 0. Identify the values to use in the Quadratic Formula.

• 2

• 5

• 3