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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: Tính : C= 11. 3^22 . 3^7 – 9^15 ==========– ( 2 . 3^14 ) ^2

Toán Lớp 6: Tính :
C= 11. 3^22 . 3^7 – 9^15
——————————–
( 2 . 3^14 ) ^2

Comments ( 2 )

  1. C = 11 . 4^22 . 3^7 – 9^15/(2.3^14)^2
    C = 11 . 3^29 – 3^30/(2^2 . 3^28)
    C = 11 . 3^29 (1-3)/(4 . 3^28)
    C = 11 . 3 . (-2)/(4)
    C = 11 . (-6)/(4)
    C = -33/2

  2. C = ( 11. 3^{22} . 3^{7} – 9^{15})/( 2 . 3^{14})^{2}
    C = ( 11 . 3^{29} – 3^{30})/( 2^{2} . 3^{28})
    C = [ 11 . 3^{29}(1 – 3)]/( 4 . 3^{28})
    C = ( 11 . 3.(-2)]/4
    C = [11 . (-6)]/4
    C = -33/2
     

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222-9+11+12:2*14+14 = ? ( )