factorise Y squared minus 7 Y + 12
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u have asked this one ask ano ther one
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y² - 7y + 12
y² - 3y - 4y + 12
y(y - 3)-4(y - 3)
(y - 3)(y - 4)
∴ y = 3 , 4
y² - 3y - 4y + 12
y(y - 3)-4(y - 3)
(y - 3)(y - 4)
∴ y = 3 , 4
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