factories 6x²+17x+5 by splitting the middle term
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Answer:
6x² + 17x + 5
= 6x² + ( 15 + 2)x + 5
= 6x² + 15x + 2x + 5
=3x( 2x +5) + 1( x+5)
= (3x + 1) (2x +5)
now,
3x + 1 = 0 2x + 5=0
=> 3x = -1 => 2x = -5
=> x= -1/3 => x = -5/2
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