Question 47
Algebraic ExpressionsGiven that p = 2, q = −5 and r = −4, evaluate 3p2 − q2 − r3
- A.101
- B.77
- C.51
- D.−27
Show the answer and explanation
Answer: C (51)
Explanation
3(4) − 25 − (−64) = 12 − 25 + 64 = 51.
Given that p = 2, q = −5 and r = −4, evaluate 3p2 − q2 − r3
Answer: C (51)
3(4) − 25 − (−64) = 12 − 25 + 64 = 51.