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# If f(x) = 3x³ + 4x² + x – 8, what is the value of f(-2)…

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**If f(x) = 3x³ + 4x² + x – 8, what is the value of f(-2)**

**A. – 18****B. – 50****C. 30****D. – 24**

**QUICK ANSWER…**

**A**

**SOLUTION****… **** **

**If f(x) = 3x³ + 4x² + x – 8, then f(-2) will be obtained by directly substituting -2 into the equation as shown below:**

**f(-2) = 3(-2)³ + 4(-2)² + (-2) – 8**

**f(-2) = 3(-8) + 4(4) + (-2) – 8**

**f(-2) = -24 + 16 – 2 – 8**

**f(-2) = – 18**

**Now for the right answer to the above question:**

**Option A is correct.****Option B is incorrect.****C is incorrect.****D is not the correct answer.**

**QUICK TIPS…**

**You may please note the****se/this****:**

**The function of any number can be gotten by directly substituting into the expression for function x.****If you love our answers, you can login to comment and say hi to us at the comment section…**

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**/ culled from 2019 JAMB-UTME mathematics question 26 /**