Algebra - Expanding brackets

Expanding single brackets (simple)

100

2(x + 3)

What is 2x + 6

200

-3(x + 4)

What is -3x - 12

300

3b(a + 4)

What is 3ab + 12

400

-4x(y - 6)

What is -4xy + 24x

500

3(5a + 2b)

What is 15a + 6b

Expanding single brackets

100

3 + 2(x + 9)

What is 2x + 21

200

10y -8(4x - 5y)

What is 50y -32x

300

2(x + 4) + 5(2x + 3y)

What is 12x + 15y + 8

400

3y(2 - 3x) - 2(x +4y)

What is -2x -2y-9xy

500

2x(x - 4) - (x - 6)

What is 2x^2 -9x + 6

Expanding double brackets (Basis FOIL)

100

(x + 3)(x - 4)

What is x^2 -x - 12

200

(x + 8)(x + 2)

x² + 10x + 16

300

(x + 5)(x - 3)

x² + 2x - 15

400

2(3p - 2q) - 7p

What is -p - 4q

500

(x +3)(y -3) + 2xy

What is 3xy - 3x + 3y - 9