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Q1 Simplify 3x2-4x+13(x+3)

Q2 Simplify the expression. State any excluded values.
n2+4n-5n+5
Q3 Multiply. 3x-2x2-412
Q4 Divide. 5xx2+2x30x2x+2
Q5 Add. 4b-23b+bb+2
Q6 Subtract. 9n-8n+1

1 answer

A1: 3x^2 - 4x + 13x + 39 = 3x^2 + 9x + 39

A2: n^2 + 4n - 5n + 5 = n^2 - n + 5 (Excluded value: n cannot be 1)

A3: 3x - 2x^2 - 4 = -2x^2 + 3x - 4

A4: (5x)/(x^2) + (2x)/(3) + 0 = 5/x + 2/3

A5: 4b - 23b + b + 2 = -18b + b + 2 = -17b + 2

A6: 9n - 8n + 1 = n + 1
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