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Question

If (a2b2ba3) = (x523), the value of x is ___.

[2]

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Solution

(a2b2ba3) = (x523)

Comparing the two matrices, we get

a = 2 and b = 5
[1]

Therefore –x = a2 - b2 = 22 – 52 = 4 – 25 = -21

Therefore x = 21
[1]


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