GRADE 9 MATH QUIZ BEE

Which of the following does not illustrates quadratic equation?

• 25x² + 29 = 0

• 25x² + 29x – 10 = 0

• 25x + 29 = 0

Rewrite the given quadratic equation into standard form. 29 + x² = -7x

• x² + 7x + 29 = 0

• x² - 7x + 20 = 0

• x² + 7x – 29 = 0

What is the value of c in the given quadratic equation?

x² + 13x = -29

• -29

• 13

• 29

What is the value of a, b and c in the given quadratic equation? 25x² - 45x = 100

• a = 25, b = -45 and c = 100

• a = 25, b = -45 and c = -100

• a = 25, b = 45 and c = 100

If the discriminant of the given quadratic equation is greater than zero and the discriminant is perfect square, then what type of roots do we have?

• Unequal Irrational Roots

• Unequal Rational Roots

• Equal Real Roots

Given (x + 5) (x – 7) = 0, apply foil method to get the quadratic equation.

• x² -2x – 35 = 0

• x² -12x – 35 = 0

• x² - 7x + 5x – 35 = 0

Transform the given two binomial into quadratic equation and find the value of a, b and c:

(x + 3)(x – 5) = 0

• a = 1, b = 2, and c = -15

• a = 1, b = -2 and c = 15

• a = 1, b = -2 and c = -15

Which of the following quadratic equation whose roots are 10 and – 10?

• x² - 10x + 100 = 0

• x² + 100 = 0

• x² - 100 = 0

Solve: (x + 18)(7x – 21) = 0 using the Zero Product Property to get x.

• x = 18 and x = 3

• x = -18 and x – 3

• x = -18 and x = 3

Supply the missing term by completing the square in quadratic equation x² + 10x + _____ = 21 + _____, to make the left side a perfect square trinomial.

• 100

• 25

• 50