A1 1.5 Warm-Up - Repeated Addition vs. Multiplication

Which expression is equivalent to:

x + x + x + x + x

• x⁵

• 5x

• x + 5

• 5 + x

• x⁵

• 5x

• 5x⁵

• 5 + x

• y⁴

• 4y

• 4y⁴

• 4 + y

• x³

• 3x

• 3x³

• 3 + x

Which expression is equivalent to:

y + y + y + y

• y⁴

• 4y

• y + 4

• 4 + y

Which expression is equivalent to:

y + y + y + y + y + y

• y⁶

• 6y

• y + 6

• 6 + y

What is the simplified form of:

3y + 3y + 3y

• 27y³

• 9y

• 3 + y

• y + 9

Which expression is equivalent to:

2a + 2a + 2a + 2a

• 8a⁴

• 8a

• 2a + 4

• 4 + 2a

What is the result of:

4b + 4b

• 8b²

• 8b

• 16b²

• 16b

• 16b²

• 8b

• 16b

• 8b²