Year 9.2 Algebra Review

Simplify:

7a x 3ab

• 21ab

• 10a²b

• 21a²b

• 21ab²

Simplify:

4xy ÷ 12x

• 3y

• 1/3 y

• 3x²y

• 1/3 x²y

Simplify:

10m x 4mn ÷ 8mn

• 5m

• 40m²n

• 5m³n²

• 5n

Simplify:

4n + 3n

• 7n

• 7n²

• 12n²

• 12n

Simplify:

6xy + xy + 4y - 3xy

• 8xy

• 8x³y⁴

• 4xy + 4y

• 8xy²

Simplify:

3st - 8ts + 2st +7ts

• 5st - ts

• 4s⁴t⁴

• 4st

• -5st + 9ts

Simplify:

-3 (a + b)

• -3a + b

• -3a - b

• -3a - 3b

• -3a + 3b

Simplify:

2a (4a + 1)

• 8a² + 1

• 8a + 1

• 9a²

• 8a² + 2a