Asked by Tracy

Help I'm stuck
I need to factor a trinomial expression using the AC method

15x^2 + 31x + 2
Answered by Steve
ac=30
factors must add to 31
30+1 = 31
(x+2)(15x+1)

or, regrouping a bit

15x^2 + 30x + x + 2
15x(x+2) + 15x+2
(15x+1)(x+2)
Answered by Tracy
thank you
Answered by Steve
15x(x+2) + 1(x+2)
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