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

Toán Lớp 6: ( x – 1/3 ) mũ 100 = ( 2 mũ 17 + 17 mũ 2 ) . ( 9 mũ 15 – 3 mũ 15 ) . ( 2 mũ 4 – 4 mũ 2 )

Toán Lớp 6: ( x – 1/3 ) mũ 100 = ( 2 mũ 17 + 17 mũ 2 ) . ( 9 mũ 15 – 3 mũ 15 ) . ( 2 mũ 4 – 4 mũ 2 )

Comments ( 2 )

  1. (x – 1/3)^100 = (2^17 + 17^2) . (9^15 – 3^15) . (2^4 – 4^2)
    text(Ta có 🙂
    (2^17 + 17^2) . (9^15 – 3^15) . (2^4 – 4^2)
    = (2^17 + 17^2) . (9^15 – 3^15) . (16 – 16)
    = (2^17 + 17^2) . (9^15 – 3^15) . 0
    = 0
    ⇒ (x – 1/3)^100 = 0
    ⇒ x – 1/3 = 0
    ⇒ x = 1/3

  2. @Kem
    ( x – 1/3 )^100 = ( 2^17 + 17² ) . ( 9^15 – 3^15 ) . ( 2^4 – 4²)
    (x- 1/3)^100 = ( 2^17 + 17² ) . ( 9^15 – 3^15 ) . (16 -16)
    (x- 1/3)^100 = ( 2^17 + 17² ) . ( 9^15 – 3^15 ) . 0
    (x- 1/3)^100 = 0
    ⇒ x – 1/3 = 0
    x = 0 + 1/3
    x = 1/3

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