Question 1
Number BasesIf 23x + 101x = 130x, find the value of x.
- A.7
- B.6
- C.5
- D.4
Show the answer and explanation
Answer: D (4)
Explanation
In base ten: (2x + 3) + (x² + 1) = x² + 3x, so 2x + 4 = 3x and x = 4.
If 23x + 101x = 130x, find the value of x.
Answer: D (4)
In base ten: (2x + 3) + (x² + 1) = x² + 3x, so 2x + 4 = 3x and x = 4.