Find x if 132x = 70 eight.

Assessment: JAMB UTME - Mathematics - 2015 Subject: General Mathematics

Question 1 Report

Find x if 132x = 70 eight.
Answer Details
132x = 708
1 × x 2 + 3 × x 1 + 2 × x 0
7 × 8 1 + 0 × 8 0
x 2 + 3 x + 2 − 56 = 0
x 2 + 3 x − 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
Read lesson note on Solution Of Linear Equations (WAEC)
Read lesson note on Algebraic Expressions (WAEC)
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