Question

Simplify the expression: 15 x7 y6
_______
3 x4 y3
A) 5 x4/7 y1/2
B) 5 x7/4 y2
C) 5 x10 y9
D) 5 x3 y3

Answer 1

$\dfrac{15x^7y^6}{3x^4y^3}=\dfrac{15}{3}x^{7-4}y^{6-3}=5x^3y^3\to\boxed{D)}\\\\Used:\\\\\dfrac{a^n}{a^m}=a^{n-m}$