SOLUTION: FACTOR COMPLETELY 2C^2-5CD-42D^2

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Question 277002: FACTOR COMPLETELY 2C^2-5CD-42D^2
Answer by edjones(7569) About Me  (Show Source):
You can put this solution on YOUR website!
2c^2-5cd-42d^2
2*-42=-84; two factors of -84 who's sum is -5= -12, +7
2c^2-12cd+7cd-42d^2
2c(c-6d)+7d(c-6d) factoring by grouping.
(2c+7d)((c-6d)
.
Ed