SS1 2ND TERM MATHEMATICS BY MR FEMI

Which of the following is a quadratic equation?

• 3x + 5 = 0

• 2x^2 + 3x - 4 = 0

• 5x^3 - x + 2 = 0

• 4x - 7 = 0

A quadratic equation is defined as an equation where the highest power of the variable is:

• 1

• 2

• 3

• 4

Which of these represents the general form of a quadratic equation?

• ax^2 + bx + c = 0

• ax + c = 0

• ax^3 + bx + c = 0

• ax + bx^2 + c = 0

Which of the following is not a quadratic equation?

• x^2 + 4x + 3 = 0

• 2x^2 - x + 1 = 0

• x^3 - 2x + 5 = 0

• 3x^2 + 2x = 0

Solve x^2 - 7x + 10 = 0 using factorization:

• x = 2 or x = 5

• x = 5 or x = -2

• x = -5 or x = -2

• x = 3 or x = 4

What are the roots of x^2 + 3x - 10 = 0?

• x = -5 or x = 2

• x = 5 or x = -2

• x = 10 or x = 1

• x = -10 or x = -1

Which pair of factors can be used to solve x^2 - 9 = 0?

• (x - 3)(x + 3)

• (x - 9)(x + 9)

• (x - 1)(x + 9)

• (x - 3)(x - 3)

Solve 2x^2 + 7x + 3 = 0 by factorization:

• x = -1 or x = -3

• x = -3 or x = 1/2

• x = -3 or x = -1/2

• x = 1 or x = 3

Solve x^2 + 6x + 8 = 0 using completing the square:

• x = -2 or x = -4

• x = 4 or x = -4

• x = 2 or x = 4

• x = -3 or x = -5

Rewrite x^2 + 4x - 5 = 0 in the completed square form:

• (x + 2)^2 = 9

• (x - 2)^2 = 5

• (x + 2)^2 = 5

• (x + 4)^2 = 9