National 5 IndicesWorksheet 1

For each question, multiply out the brackets (if there are any) and simplify the expression as far as possible. Remember to change x0 to 1 and x1 to x where they appear.

Q1
x2x4

Q2
x8y3x2

Q3
x5/x4

Q4
x-2x-1

Q5
x2(x2 + x3)

Q6
x3(x-1 - x-3)

Q7
x4(y2x + x-10y)

Q8
x1/2(x1/2 + y1/2)

Q9
x5y(x-2 + x-5y-1)

Q10
x3/2(x3/2 - x-1/2)

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