速解1题:(a+1)(a-4)—4(a-1)²
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速解1题:(a+1)(a-4)—4(a-1)²速解1题:(a+1)(a-4)—4(a-1)²速解1题:(a+1)(a-4)—4(a-1)²(a+1)(a-4)—4(a-1
速解1题:(a+1)(a-4)—4(a-1)²
速解1题:(a+1)(a-4)—4(a-1)²
速解1题:(a+1)(a-4)—4(a-1)²
(a+1)(a-4)—4(a-1)²
=a²-4a+a-4-4(a²-2a+1)
=a²-4a+a-4-4a²+8a-4
=-3a²+5a-8
-3a2 +5a-8
-3a2+5a-8
4a-1/a
a(a-1)(a-2)(a-3)(a-4)因式分解
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a a=[ ]
计算[(a-1)/a*a-4*a+4]-[(a+2)/(a*a-2*a*a)]-4/a
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?
幂的计算题1、a×a^2×a^3×a^4×a^52、a+2a+3a+4a+a×a^2×a^3×a^4
a/a^2-4 a-1/a-2 a+2/a^2-4a+4
(a²+a+1-a³/a-1)×(1+a-4a/1+a)
(1-16a×a×a×a)÷(4a×a+1)÷(2a+1)²
(1-16a×a×a×a)÷(4a×a+1)÷(2a+1)
(a+1/a方-a+4/1-a方)/a方+2a-3/a+3
[a^2-4/(a-3)(a+2)+(a+2)/a-3]除以a+1/a-3
[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2
[a-a/(a+1)]÷(a²-2a)/(a²-4)×(a+1)/(a²+4a+4)
a=-1 求a-2a+3a-4a+5a-6a+...+99a-100a
速解1题:(a+1)(a-4)—4(a-1)²
a^4+a^3-a-1(因式分解)
(a+4)(2a+1)(a-3)