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 6: (6^9×2^10+12^10)÷[2^19×(-27)^3+15×(-4)9×9^4]

Toán Lớp 6: (6^9×2^10+12^10)÷[2^19×(-27)^3+15×(-4)9×9^4]

Comments ( 1 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    (6^9 xx 2^{10} + 12^{10})/(2^{19} xx (-27)^3 + 15 xx (-4)^9 xx 9^4)
    = (2xx12^9+12xx12^{9})/(-2^{19}xx3^9-15xx2^{18}xx3^8)
    = (14xx12^9)/(3^8xx2^{18}xx(-2xx3-15))
    = (14xx12^9)/(3^8xx2^{18}xx(-21))
    = -(2xx2^{18}xx3^9)/(3^8xx2^{18}xx3)
    = -(2xx3)/3
    = -2

Leave a reply

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

About Hương