Question

2. Efectuați, dând factor comun:
a) 3^2•5+3^2•7;
b) 2025^2019-2024•2025^2018;
c) (7^10-7^9):(7^9-7^8);
d) 5^3•2^6-5^3•7^2​
urgent va rog!!!

Answer 1

Răspuns:

a) 3²( 5+7) = 9•12 =108

b) 2025²⁰¹⁸( 2025¹-2024•1)= 2025²⁰¹⁸•1= 2025²⁰¹⁸

c) (7⁹-7⁸)•[(7-1):1]= (7⁹-7⁸)•6

d) 5³(2⁶•7²)=125• 64•49= 392000