5
3
6
1
Correct answer is C
132x = 708
1×x2+3×x1+2×x0
7×81+0×80
x2+3x+2−56=0
x2+3x−54=0
x(x + 9)−6(x + 9) = 0
(x + 9)(x − 6) = 0
Either (x + 9) = 0 or (x − 6) = 0
x = − 9 or +6
The positive values for x = 6
The base number for 132x = 1326
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