Solve the quadratic equation by using the quadratic formula.

3×2 + 4x + 10 = 0

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Solve the quadratic equation by using the quadratic formula.

0.4×2 + x - 0.3 = 0

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Solve the quadratic equation by using the quadratic formula.

-3×2 – 5x + 2 = 0

**A.** **B.** **C.** **D.**

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In which case would it be best to use the “Factoring Method” to solve the trinomial equation?

a. x2 + 4x = -5

b. 4.3×2 + 2.4x - 3 = 0

c, x2 – 4x + 3 = 0

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Which graph shows a quadratic function which has a discriminant of 0?

**A.**

**B.**

**C.**

**D.**

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If a quadratic equation has a discriminant of 16, what is not always true about its solutions?

a. All solutions are rational numbers

b. All solutions are real numbers

c. All solutions are integers

d. There are two solutions

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If a quadratic equation has a discriminant of 16, what is not always true about its solutions?

a. All solutions are rational numbers

b. All solutions are real numbers

c. All solutions are integers

d. There are two solutions

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How many real solutions does a quadratic equation have if it discriminant is 103

a. 0

b. 1

c. 2

d. 3

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How many real solutions does a quadratic equation have if its discriminant is- 3?

a. 0

b. 1

c. 2

d. 3

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Find the discriminant of the quadratic equation.

-12×2 + 5x + 2 = 0

a. 121

b. 71

c. -71

d. -121

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Find the discriminant of the quadratic equation.

9×2 – 6x – 4 = 0

a. 108

b. 180

c. -108

d. -180