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Identify the factors of this trinomial 4x²-19x+21
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Identify the factors of this trinomial
4x²-19x+21

User Aditya Shukla
by
8.4k points

2 Answers

1 vote

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 RCN
by
6.9k points
1 vote


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

User Keugels
by
7.6k points
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