Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

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

Toán Lớp 7: Thực hiện phép tính 3^7 × 8^6 /6^6×(-2)^12 Phân số nha mn

Toán Lớp 7: Thực hiện phép tính
3^7 × 8^6 /6^6×(-2)^12
Phân số nha mn

Comments ( 2 )

  1. $\dfrac{3^{7}.8^{6}}{6^{6}.(-2)^{12}}$
    =$\dfrac{3^{7}.2^{18}}{3^{6}.2^{6}.2^{12}}$
    =$\dfrac{3^{7}.2^{18}}{3^{6}.2^{18}}$
    =3

  2. (3^7×8^6)/(6^6×(-2)^12)
    = (3^7×2^18)/(3^6×2^6×2^12)
    = (3^7×2^18)/(3^6×2^18)
    = (3^7×\cancel(2^18))/(3^6×\cancel(2^18))
    = 3^7/3^6
    = 3^1
    = 3

Leave a reply

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