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Year 9 Maths Advanced Indices and Scientific Notation

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Questions
Question 1
205407
Ravi says \((3x)^2 = 3x^2\). Which statement is correct?
A.
right - only the \(x\) is squared
B.
wrong - it should be \(6x^2\)
C.
right, provided \(x\) is positive
D.
wrong - it should be \(9x^2\)
wrong - it should be \(9x^2\)

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