Calculeaza:
a) (7^4×3^4×2^5)^3÷(7^5×2^3)^2=?
b)(13^3×19^5×23^7)^2×(23^7×17^11×11^13) ^3=?
^= la putere
VA ROG


Răspuns :

a)7^12x3^12X2^15:(7^10x2^6)=7^12X3^12x2^15:7^10:2^6=7^2x3^12x2^9
b)13^6x19^10x23^14x23^21X17^33x11^39=13^6x19^10x23^35x17^33x11^39