Advanced MathEasyConstant in a sum of binomials
Advanced Math practice question
The sum (x + 4) + (x − 1) simplifies to 2x + c, where c is a constant. What is the value of c?
Answer: 3
4 + (−1) = 3.
Common wrong answers
- If you answered 4
- 4 forgets to include the −1.
- If you answered 5
- 5 adds 4 and 1, ignoring the minus sign.
- If you answered -3
- −3 has the sign reversed.
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