... máùu031 42 )1 2 2=−++xx )2( 21 2 2 )2 −=−−+xxxxx4 )2( 2 2 1 2 1)3 2 2−+=−−+−+xxxxxx041 8 12 12 12 12 )4 2 =−−−+−+−xxxxx41 )23 ( 2 9 2 61)5 2 −+−=++−−xxxxxxx)3)(1( 2 22) 3 (2 )6−+=++− ... 03/ (2x - 1) 2 + (2 - x)(2x - 1) = 04/ (x + 2) (3 - 4x) = x 2 + 4x + 4.5/ (2x - 5) 2 - (x + 2) 2 = 06/ x 2 - x - (3x - 3) = 07/ x 2 - 5x + 6 = 0 8/ Bi 26 ,29 ,30,31, 32, 33,34 SBT/tr7 ,8 Dảng ... 0.1/ 516 2 617 xxx −=+− 2/ 37 2 2436 52 +−=−+− xxx3/ 15 ,2 4 32 273−=+−−xxx4/ Bi 21 , 22 , 23 , 24 SBT/tr6Dảng II: PT têch.1/ (4x -10) (24 + 5x) = 0 2/ 3x (25 x +15) - 35(5x...