Question

ix. 3(x - 4)2 - 5(x – 4) = 12 find the root of the following quadratic equations by factorisation

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Answer 1

Answer:

$3(x - 4)2 - 5(x - 4) = 12 \\ 3(x - 4) - 3(x - 4) = 12 \\ 3x - 12 - 3x + 12 = 12 \\ x = 12$