Easy Math Class 11 Level 8

If f(x)=x²+3x then what is f(4)?

यदि f(x)=x²+3x है तो f(4) क्या होगा?

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Correct Answer

C. 28

Explanation

Step 1: Put 4 in place of x. Step 2: 4² + 3×4 = 16 + 12 = 28. Step 3: In polynomial values do square and multiplication carefully.

Step 1: x की जगह 4 रखें। Step 2: 4² + 3×4 = 16 + 12 = 28। Step 3: Polynomial value में square और multiplication सावधानी से करें।

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