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The roots of $2x^2 - 4x = 0$ are

A0 and 4
B0 and 2
C2 and 4
D1 and 2
Answer & Solution
Correct answer: B. 0 and 2
1. Take out the common factor: $2x(x-2)=0$. 2. So $2x=0$ or $x-2=0$, giving $x=0$ or $x=2$. 3. The roots are 0 and 2. _Source: Karnataka SSLC (KSEEB) Class 10 Mathematics, Ch10 'Quadratic Equations', §10.2_
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