Question

Scrie ca o singură putere, folosind factorul comun: a) 3×5^12+2×5^12 = b) (3^9+3^9+3^9) ÷3^6=​

Answer 1

A)3×5^12+2×5^12=

5^12×(3+2)=

5^12×5=5^13

B)(3^9+3^9+3^9)÷3^6=

3^6×(3^3+3^3+3^3)÷3^6=

(27+27+27)×1=

81=3^4