Quadratic Factorization and Equations

Solve each equation by factoring.

• A

• B

• C

• D

In the expression 4x²-5x+9 the leading coefficient is

• 9

• -5

• -4

• 4

The solution of the quadratic equation
4x²-5x-9=0 are

• x=-1 or x=9/4

• x=1 or x=9/4

• x=2 or x=3

• x=-2 or x=-3

The non-zero root of the equation 3x - 5x² = 0 is_____

• 3⁄5

• 5⁄3

• -3⁄5

• -5⁄3

Which is another way of correctly expressing
 (x  - 3)(x - 3)?

• (x² - 3²)

• (x² - 3)

• (x + 3)(x - 3)

• (x - 3)²

( x - 1 ) ( x + 3 ) = 0
so, the roots are 1 and

• 0

• -1

• 3

• -3

By using factorisation method, the roots of 2x² - x - 15 = 0 are

• -2.5 and 3

• 2.5 and -3

• 2.5 and 3

• -2.5 and -3

FACTORISE

m² + 3m + 2

• (m + 2)(m + 3)

• (m + 2)(m + 1)

• (m + 3)

• (m + 4)(m - 3)

What are the values of a, b, and c in the quadratic equation 3x² - 10 = -4x

• a = 3x² b = -10 c = -4x

• a = 3 b = -10 c = -4

• a = 3 b = -4 c = -10

• a = 3 b = 4 c = -10

What are the solutions to 5( x - 3 )² = 45?

• x = 6 and x = 0

• x = -3 and x = 45

• x = -6.71 and x = 6.71

• x = -3 and x = 3