solve this using formulae
can anyone answer this
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solve this using formulae
can anyone answer this
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Answer:
To factorise:
→ 9x² - 12x + 3
→ 9x² - 3x - 9x + 3
→ 3x( 3x - 1) - 3( 3x - 1)
→ (3x - 3) ( 3x - 1)
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Answer:
=-b±√b²-4ac/2a
x=-12±√144-4(9)(3)/2(9)
x=-12±√144-108/18
x=-12±√36/18
x=-12±6/18
x=-1 , -1/3.