Solving Quadratic Equations by Extracting the Square Roots

Solving Quadratic Equations by Extracting the Square Roots

Assessment

Assessment

Created by

EDUARDO GONZAGA

Mathematics

9th Grade

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7 questions

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1.

Multiple Choice

30 sec

1 pt

How many solutions are obtained by solving quadratic equations through extracting square roots?

1

2

3

4

2.

Multiple Select

30 sec

1 pt

Which of the following equations are solvable by extracting square roots?

x² - 3 = 0

(2x - 1)² - 4 = 2

5 + x = x²

x - 6x = 0

3.

Multiple Choice

30 sec

1 pt

Which of the following are the solutions of 3y² = 75?

± 5

5

±5√3

- 5√3

4.

Multiple Choice

30 sec

1 pt

What is the best way to start solving the equation  2y2 = 2882y^2\ =\ 288  ?

Extract the square roots of both sides

Rewrite the equation in standard form

Divide both sides by 2

Divide both sides by 288

5.

Multiple Choice

30 sec

1 pt

Which of the following is true about the solutions of 
 4r2 + 16 = 04r^2\ +\ 16\ =\ 0  ?

There is only one solution.

The solutions are imaginary numbers.

The solutions are 2 and –2.

The solutions are identical or repeated.

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