BT-Phuong_trinh_mu_logarit_Phan5

BT-Phuong_trinh_mu_logarit_Phan5 - Bi 1: Gii ph ng trnh: 2...

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Bμi 1: Gi¶i ph¬ng tr×nh: a. 2 x x 8 1 3x 2 4 - + - = b. 2 5 x 6x 2 2 16 2 - - = c. x x 1 x 2 x x 1 x 2 2 2 2 3 3 3 - - - - + + = - + d. x x 1 x 2 2 .3 .5 12 - - = e. 2 2 x 1 (x x 1) 1 - - + = f. 2 x 2 ( x x ) 1 - - = g. 2 2 4 x (x 2x 2) 1 - - + = Bμi 2:Gi¶i ph¬ng tr×nh: a. 4x 8 2x 5 3 4.3 27 0 + + - + = b. 2x 6 x 7 2 2 17 0 + + + - = c. x x (2 3) (2 3) 4 0 + + - - = d. x x 2.16 15.4 8 0 - - = e. x x x 3 (3 5) 16(3 5) 2 + + + - = f. x x (7 4 3) 3(2 3) 2 0 + - - + = g. x x x 3.16 2.8 5.36 + = h. 1 1 1 x x x 2.4 6 9 + = i. 2 3x 3 x x 8 2 12 0 + - + = j. x x 1 x 2 x x 1 x 2 5 5 5 3 3 3 + + + + + + = + + k. x 3 (x 1) 1 - + = Bμi 3:Gi¶i ph¬ng tr×nh: a. x x x 3 4 5 + = b. x 3 x 4 0 + - = c. 2 x x x (3 2 )x 2(1 2 ) 0 - - + - = d. 2x 1 2x 2x 1 x x 1 x 2 2 3 5 2 3 5 - + + + + + = + + Bμi 4:Gi¶i c¸c hÖ ph¬ng tr×nh: a. x y 3x 2y 3 4 128 5 1 + - - = = b. 2 x y (x y) 1 5 125 4 1 + - - = = b. 2x y x y 3 2 77 3 2 7 - = - = d. x y 2 2 12 x y 5 + = + =
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e . x y x y 2 2 4 x y x y 2 3 6 m m m m n n n n - - + + - = - - = - víi m, n > 1. Bμi 5: Gi¶i vμ biÖn luËn ph¬ng tr×nh: a . x x (m 2).2 m.2 m 0 - - + + = . b . x x m.3 m.3 8 - + = Bμi 6: T×m m ®Ó ph¬ng tr×nh cã nghiÖm: x x (m 4).9 2(m 2).3 m 1 0 - - - + - = Bμi 7: Gi¶i c¸c bÊt ph¬ng tr×nh sau: a. 6
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BT-Phuong_trinh_mu_logarit_Phan5 - Bi 1: Gii ph ng trnh: 2...

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