Solving Quadratics Part I

Which is RIGHT?

• The square roots of 100 are 50 and -50
• The square roots of 4 are 2 and -2
• The square roots of 16 are 5 and -5

Finish this sentence: A Quadratic Equation has .....

• no negative numbers
• the highest exponent of a 2(squared)
• 1 answer

The opposite of Squaring is Dividing

• True
• False

x² = 100 What is x? ( Show Work)

• 25 and -25
• 50 and -50
• 10 and -10

What is the 1st step to solving 3(x + 1)² = 27 ?

• Root Both sides
• Subtract 1
• Divide by 3

What is the 1st step in solving this equation, 9x² = 144

• Divide by 9
• Root both sides
• Multiply by 2

SOLVE. 9x² = 144. What are the answers? (Use "and" to separate the numbers) SHOW WORK

What is the 1st step in solving this equation: x² + 6 = 87

• Add 6
• Subtract 6
• Root both sides

SOLVE : x² + 6 = 87. What are the answers? (Use "and" to separate the numbers)

SHOW WORK: Solve the equation and choose the correct answer: (x + 1)² = 64

• 7 and -7
• 7 and -9
• 9 and -9