Question

Tolong donk pke cara yaa

Answer 1

5) 2^4 x 5^6 (6^6 - 3^8)
    ----------------------------
     11 x 5^7 x 2^4
= 16 x 15625 (46656 - 6561)
    --------------------------------------
     11 x 78125 x 16
= 250000 x 40095
   -----------------------
   13750000
= 10023750000
    -------------------
    13750000
= 729

9) x- 1/x = 3
= x - 1 = 3x
= -1 = 3x - x
= -1 = 2x
= x = -1/2
substitusi :
x^2 + 1/x^2
= (-1/2)^2 + 1/(-1/2)^2
= 1/4 + 4/1
= 1/4 + 16/4 = 17/4 = 4,25

10) [9 - 1/(-1/3)] [ 9+9 ]
= [9-(-3)] x 18
= [9+3] x 18
= 12x18 = 216