Page 54 - Senior Math
P. 54

Simplify each of the following. Under what conditions are the expressions undefined?
1) ๐‘ฅ(๐‘ฅโˆ’3)(๐‘ฅ+6) ๐‘ฅ2+๐‘ฅโˆ’12
3) (๐‘ฅ2โˆ’16๐‘ฅ+64)(๐‘ฅ+2) (๐‘ฅ2โˆ’64)(๐‘ฅ2โˆ’6๐‘ฅโˆ’16)
5) 3๐‘ฅ(๐‘ฅโˆ’8)(๐‘ฅ2+2๐‘ฅโˆ’24) 15๐‘ฅ2(๐‘ฅ2โˆ’12๐‘ฅ+32)
Simplify each of the following. 7) ๐‘ฅ2+8๐‘ฅ+15 โˆ™ ๐‘ฅ2โˆ’9๐‘ฅ+18
๐‘ฅโˆ’6 ๐‘ฅ2โˆ’9
9) ๐‘ฅ2+9๐‘ฅ+20 โˆ™ 4๐‘ฅ2+16๐‘ฅ+16 8๐‘ฅ+16 ๐‘ฅ2โˆ’25
2) ๐‘ฅ2(๐‘ฅ2+3๐‘ฅ+2) 2๐‘ฅ(๐‘ฅโˆ’4)(๐‘ฅ+2)
4) ๐‘ฅ2(๐‘ฅ+2)(๐‘ฅโˆ’4) 6๐‘ฅ(๐‘ฅ2+๐‘ฅโˆ’20)
6) ๐‘ฅ3โˆ’9๐‘ฅ2 ๐‘ฅ2โˆ’3๐‘ฅโˆ’54
      8)
๐‘ฅ2โˆ’6๐‘ฅโˆ’16 รท ๐‘ฅ2โˆ’8๐‘ฅ ๐‘ฅ2โˆ’๐‘ฆ2 ๐‘ฅ+๐‘ฆ
   10) 3๐‘ฅ2+6๐‘ฅ+3 รท 12๐‘ฅ2โˆ’12 ๐‘ฅ2โˆ’3๐‘ฅโˆ’10 ๐‘ฅ2โˆ’4
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