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

Toán Lớp 6: 1. Tìm x biết 25 + 3.(x-8) = 106 2. Chọn câu đúng: 5^2 . 5^4 : 5^3 = 5^3 4^4 . 4^2 = 4^6 7^2 . 7^4 = 7^8 9^6 : 9^3 = 9^3 nhanh nhé

Toán Lớp 6: 1. Tìm x biết 25 + 3.(x-8) = 106
2. Chọn câu đúng:
5^2 . 5^4 : 5^3 = 5^3
4^4 . 4^2 = 4^6
7^2 . 7^4 = 7^8
9^6 : 9^3 = 9^3
nhanh nhé

Comments ( 2 )

  1. 125+3(x-8)=106
    ⇔ 25+3x-24=106
    ⇔ 3x=105
    ⇔x =35
    2. 4^4 . 4^2 = 4^6
    Ta có 4^4.4^2=$4^{4+2}$ =4^6

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