Easy Math Class 11 Level 4

If f(x)=x²-2x then what is f(4)?

यदि f(x)=x²-2x है तो f(4) क्या होगा?

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Correct Answer

C. 8

Explanation

Step 1: Substitute 4 for x. Step 2: 4²-2×4 = 16-8 = 8. Step 3: Do square first then multiplication and subtraction.

Step 1: x की जगह 4 substitute करें। Step 2: 4²-2×4 = 16-8 = 8। Step 3: पहले square करें फिर multiplication और subtraction करें।

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