413,891 views
4 votes
4 votes
Identify the factors of this trinomial
4x²-19x+21

User SlimsGhost
by
3.0k points

2 Answers

19 votes
19 votes

Answer:

(4x-7) (x-3)

Explanation:


4x {2} - 19x + 21 \\ = 4x {2} - 7x - 12x + 21 \\ = x(4x - 7) - 3(4x - 7) \\ = (4x - 7)(x - 3)

User NiematojakTomasz
by
3.0k points
12 votes
12 votes


4x^2-19x+21\\\\=4x^2-7x-12x+21\\\\=x(4x-7)-3(4x-7)\\\\=(x-3)(4x-7)

User Kristoffer Bohmann
by
2.6k points
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