(5a²-180)(20a+20)/(10a²-10)(2a-12)
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(5a²-180)(20a+20)/(10a²-10)(2a-12)

[From: ] [author: ] [Date: 11-11-03] [Hit: ]
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Multiply & Simplify

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= ([5a² - 180][20a + 20])/([10a² - 10][2a - 12])
= (5[a² - 36]20[a + 1])/(10[a² - 1]2[a - 6])
= (5[a + 6][a - 6]20[a + 1])/(10[a + 1][a - 1]2[a - 6]) cancel 10
= (5[a + 6][a - 6]2[a + 1])/([a + 1][a - 1]2[a - 6]) cancel 2
= (5[a + 6][a - 6][a + 1])/([a + 1][a - 1][a - 6]) cancel a - 6
= (5[a + 6][a + 1])/([a + 1][a - 1]) cancel a + 1
= (5[a + 6])/(a - 1)

Answer: (5[a + 6])/(a - 1)
1
keywords: sup,180,12,10,20,(5a²-180)(20a+20)/(10a²-10)(2a-12)
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