I need to factor (my last post was incorrect)

24x^2 + 42x + 15

3 answers

=3(8x^2 +14x +5)
=3(2x + 1)(4x +5)
24x^2+42x+15=3(8x^2+14+5)
=3(8x^2+10x+4x+5)
3[2x(4x+5)+1(4x+5)]
=3(4x+5)(2x+1)
Please read second expression as
3(8x^2+14x+5)
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