Question

Hasil dari:
A.) 6^7 × 6^-5 : 6^4
B.) a^8 : (a^-7 × a^4)
C.) X^3n-5 : X^2n+7

Answer 1

A.) 6^(7+(-5)-4) = 6^(-2)
B.) a^(8-(-7+4)) = a^(8-(-3)) = a^11
C.) X^((3n-5)-(2n+7)) = X^(3n-2n-5-7)
= X^(n-12)

Answer 2

A. 6^7x6^-5:6^4
=6².6^4
=6^-2
= 1/6^2
= 1/36

b. a^8:(a^-7xa^4
= a^8:a^-3
= a^11

c. x^3n-5 : x^2n+7
=(3n-5)-(x^2n+7)
= n-12
= x^n-12