多項式分解為因式
A)16u²-72uv+81v²
分解為因式
b)16(p-5)²+8(p-5)+1
s.3 數學題 (超級急)...20點的哦!!
2008-09-06 8:56 pm
回答 (2)
2008-09-06 9:16 pm
A) 16u-72uv+81v
= (4u-9v) x (4u-9v)
= (4u-9v)
= (2u-3v)
B) 16(p-5)+8(p-5)+1
= [4(p-5)+1] x [4(p-5)+1]
= [4(p-5)+1]
= (4p-20+1)
= (4p-19)
= (4u-9v) x (4u-9v)
= (4u-9v)
= (2u-3v)
B) 16(p-5)+8(p-5)+1
= [4(p-5)+1] x [4(p-5)+1]
= [4(p-5)+1]
= (4p-20+1)
= (4p-19)
2008-09-06 9:08 pm
多項式分解為因式
A)16u-72uv+81v
=(4u-9)2
分解為因式
b)16(p-5)+8(p-5)+1
=[4(p-5)+1]2
=(4p-19)2
A)16u-72uv+81v
=(4u-9)2
分解為因式
b)16(p-5)+8(p-5)+1
=[4(p-5)+1]2
=(4p-19)2
收錄日期: 2021-04-23 20:34:51
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