Solve by
factorisation method
x²-7x+12=0
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Answer:
x² - 7x + 12 = 0
x² - 4x - 3x + 12 = 0
Now take common terms out
x(x - 4) -3(x - 4) = 0
(x-3) (x-4) = 0
x-3 =0 and x-4 =0
x = 0-3 and x = 0-4
∴ x = -3 and x = -4
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