User: Subtract the following trinomials: (6x2 + x + 4) - (x2 - x + 9).

User: (6x2 + x + 4) - (x2 - x + 9)

Weegy: the answer is D. (3x-4)(2x+5)
well, when u solve this kind of problems, u can check the answer by multiplying the FACTORS.
here, (3x-4)(2x+5)=6x2 + 7x - 20
however, while solving it, the steps r as follows:-
1. first u multiply 6 with 20. [ This gives 120
2.now, u try to find two numbers, which are factors of 120, and give the difference of 7.
here, they r 15 n 8.
3. then u do it as,
6x2 + 15x-8x - 20
=3x(2x+5)-4(2x+5)
=(3x-4)92x+5) ] Controler|Points 3928|

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