x^2-7x+12 factorise algebraic expressions
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Answer:
( x - 4 ) ( x - 3 )
Step-by-step explanation:
x² - 7x + 12
= x² - ( 4 + 3 )x + 12
= x² - 4x - 3x + 12
= x ( x - 4 ) - 3 ( x - 4 )
= ( x - 4 ) ( x - 3 )
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