Intro to Completing the Square HW

What number is 25 the perfect square of?

16²

• 256
• 289
• 396
• 324

4²

• 8
• 15
• 18
• 16

10²

• 100
• 20
• 200
• 10

15²

• 196
• 289
• 256
• 225

20²

• 40
• 200
• 20
• 400

4- Which number is a perfect square?

• a) 100

• b) 110

• c) 120

• d) 59

3- Which number is perfect square?

• a) 36

• b) 39

• c) 89

• d) 11

Simplify:
(x-7)²

• x²-49
• x²+49
• x²-14x+49
• x²-14x-49

Multiply:

(y + 9)²

• y² +18y + 81

• y² + 81

• y + 9

• y² +18y + 18