61a

Changing the subject of a formula by using up to 4 inverse operations (including powers and roots)

61a Change the subject of a formula with a square root.

61a Change the subject of a formula where the subject is squared.

22a: Use inverse operations to find the input of function machines

28a: Using a two-step formula written in words both forwards and backwards

32a: Solve equations formally by using 1/2 inverse operations

55a: Changing the subject of a formula by using 1/2 inverse operations

Formula

Subject

Rearrange

Inverse

Operation

86a: Rearrange a formula where the subject appears more than once (higher tier only)

92n: Give solutions to a quadratic equation in exact surd form eg solving by completing the square (higher tier only)

97a: Obtain an inverse function by rearranging formulae and express this in the form f¯¹(x) = (higher tier only)

Changing the subject of a formula (advanced)

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