Collecting Like TermsPractise your algebraic simplification skills with this self marking exercise. 
This is level 2; Quadratic expressions.
Simplify each of the following by collecting together like terms.
This is Collecting Like Terms level 2. You can also try:
Collecting Like Terms Level 1
Brackets 1
Brackets 2
Brackets 3
Brackets 4
Brackets 5
Brackets 6
Brackets 7
Brackets 8
Brackets 9
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Level 1  Collect like terms in linear expressions
Example \(5n+4−4n+8\)
Level 2  Collect like terms in quadratic expressions
Example \(6y+9y^2−3y\)
Brackets Level 1  Collect like terms when 1 term is repeated
Example: \(5d  (2d + 2)\)
Brackets Level 2  Collecting like terms when 2 terms are repeated
Example: \((9d  7)  (5d  2)\)
Brackets Level 3  Multiplying a single positive integer over a bracket
Example: \(4(2d + 4)\)
Brackets Level 4  Multiplying a single negative integer over a bracket
Example: \(5(5d + 4)\)
Brackets Level 5  Multiplying a variable over a bracket
Example: \(4d(5d  5)\)
Brackets Level 6  Expanding products of two simple binomials
Example: \((d + 7)(d  2)\)
Brackets Level 7  Expanding products of two binomials
Example: \((4d + 7)(3d + 2)\)
Brackets Level 8  Squaring a binomial
Example: \((3d + 2)^2\)
Brackets Level 9  Simplifying more complex expressions involving brackets
Example: \(5(3d+1)2(12d)\)