Enlargements and Expanding 3 brackets

Question 1

Expand and simplify:

5x+1)(2x-1)(2x-3

Answer 1

20x^3-36x^2+7x+3

Question 2

Expand and simplify:

(x+2)^3

Answer 2

x^3+6x^2+12x+8

Question 3

Form an expression for the volume of a cuboid with the dimensions:
Width:x+9
Depth:x+1
Height:x+1
and then simplify the expression

Answer 3

x^3+11x^2+19x+9

Question 4

Expand and simplify:

(y+3)(y+1)^2

Answer 4

y^3+5y^2+7y+3

Question 5

Expand and simplify:

y+1)(y-2)(y+3

Answer 5

y^3+2y^2-5y-6