(a)2(3x-4)≡Ax=B
(b)4(x-A)≡2Bx=6
球下列恆等式中A,B的值
2007-07-31 8:04 pm
回答 (2)
2007-07-31 8:10 pm
a) LHS = 2(3x - 4) = 6 x - 8
Therefore, A = 6, B = - 8
b) LHS = 4 (x -A) = 4 x - 4A = 2 (2x - 2A)
RHS = 2Bx + 6 = 2(Bx + 3)
Therefore, A= 3/2, B = 2
Therefore, A = 6, B = - 8
b) LHS = 4 (x -A) = 4 x - 4A = 2 (2x - 2A)
RHS = 2Bx + 6 = 2(Bx + 3)
Therefore, A= 3/2, B = 2
2007-07-31 8:07 pm
2條式 ３個未知數 是不可能解到吧~
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