Question 328723
factor 8ac + 12ad + 10bc + 15bd 
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Rearrange:
8ac+10bc + 12ad+15bd
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Factor the 1st 2 and the last 2 terms separately:
2c(4a+5b) + 3d(5a+5b)
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Factor again:
(4a+5b)(2c+3d)
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Cheers,
Stan H.
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