dannadishapm dannadishapm

26-11-2016
Mathematics

contestada

Factor 2pq - 5qr + 10r - 4p.
A)
(q - 10)(p - 5r)
B)
(q - 2)(2p - 5r)
Eliminate
C)
(2q - 2)(2p - 5r)
D)
(q - 2)(10p - 4r)

Respuesta :

JcAlmighty JcAlmighty

29-11-2016

The answer is B) (q - 2)(2p - 5r)

2pq - 5qr + 10r - 4p = 2pq - 4p - 5qr + 10r
= 2pq - 4p - (5qr - 10r)
= 2p(q - 2) - 5r(q - 2)
= (q - 2)(2p - 5r)

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