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If a binary operation * is defined by x * y = x + 2y,...

Mathematics
JAMB 2013
If a binary operation * is defined by x * y = x + 2y, find 2 * (3 * 4)
  • A. 24
  • B. 16
  • C. 14
  • D. 26
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Correct Answer: Option A
Explanation
x * y = x + 2y (given)

3 * 4 = 3 + 2(4) = 11

Hence, 2 * (3 * 4) = 2 * 11

= 2 + 2(11)

= 2 + 22

= 24

There is an explanation video available below.

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Explanation Video

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