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ANTONII [103]
3 years ago
5

How to factor a polynomial with four terms by grouping: 20ay - 10ax + 42by - 21bx

Mathematics
1 answer:
Nesterboy [21]3 years ago
3 0
= 10a(2y-x) + 21b(2y-x)
=(2y-x)(10a+21b)
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