Solving Quadratic Equations by Completing the Square Lesson

Solving Quadratic Equations by Completing the Square Lesson

9th Grade

10 Qs

quiz-placeholder

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Solving Quadratic Equations by Completing the Square Lesson

Solving Quadratic Equations by Completing the Square Lesson

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Barbara White

Used 6+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the first step to solving THIS equation by completing the square?

a2 + 10a + 21 = 0

Divide 10 by 2 and add the result to both sides

Subtract the 21

Set the equation equal to zero

Add a2 and 10a together

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What do you do to the b value to correctly complete the square?

divide it by 2 and square the result

square it

divide it by 2 only

divide it by 2 and take the square root of the result

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is one of the solutions to this equation?

(2x - 1)2 = 49

7

-7

-3

-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write the following quadratic expression in completed square form...

x2 + 6x = 5

(x + 3)2 = 5

(x + 6)2 = 9

(x + 6)2 = 14

(x + 3)2 = 14

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write the following quadratic expression in completed square form...

x2 + 4x + 10

(x + 2)2 + 6

(x + 4)2 + 6

(x + 4)2 - 6

(x + 2)2 - 6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the following quadratics equation by completing the square...

x2 + 6x - 3 = 0

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve by completing the square.

x2 + 4x= 12

x = 1 and -1

x = 6 and -2

x = 2 and -2

x = -6 and 2

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