O LevelMathsCambridgeTopic QuestionsAlgebra & SequencesRearranging Formula

Rearranging Formula (Cambridge O Level Maths)

Topic Questions

1

2 marks

Make $x$ the subject of this formula.

$2 y = 5 x - 7$

$x =$ ................................................

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1

2 marks

$y = \sqrt{u^{2} x}$

Rearrange the formula to write $x$ in terms of $u$ and $y$ .

$x$ = ..............................................

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1

3 marks

Rearrange $2 (4 x - y) = 5 x - 3$ to make $y$ the subject.

$y$ = ...................................................

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1

3 marks

The equation $\frac{x^{2}}{2} + \frac{1}{x^{2}} - \frac{2}{x} = 3 x + 1$ can be written as $x^{4} + a x^{3} + b x^{2} + c x + 2 = 0$ .

Find the values of $a$ , $b$ and $c$ .

$a$ = ...................................................

$b$ = ...................................................

$c$ = ...................................................

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