m³ - 9m² + 23m - 15 = 0 by factorisation
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0
Answer:
-15 + 23m + -9m² + m³ = 0
solving for variable 'm'
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1
Answer:
m³ + 3.-3.m² + 3.(-3)²m -3³ -4m +12 = 0
=> (m-3)³ -4(m-3) =0
=> (m-3)((m-3)²-4) =0
=> (m-3)(m² -6m + 9 -4) = 0
=>(m-3)(m² - 6m + 5 ) = 0
ok?
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