Quadratics Mixed Practice

If the discriminant is positive, then the solution will be

• One real solution

• two real solutions

• two non-real solutions

• all real numbers

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

• Not Sure

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

• Not Sure

A function has a discriminant of 25.
______________
How many solutions does it have?

• 0

• 1

• 2

• 5

Given the perfect square trinomial, identify the equivalent expression

• (x-18)²

• (x-9)²

• (x+81)²

• (x+9)²

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4

• 2

• 8

• 20

Complete the Square
x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

Solve by completing the square.
x² +12x = 5

• X = 6 + √41 or  6 − √41

• X= 35 or 47

• X = −6 + √41 or  −6 − √41

• X = √35 or √47

Solve by using the square root method:

x² = 49

• -7

• 7

• 49

• ±7

Solve by using the square root method:

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9