Question

Folosind factorul comun descompune: 3 la puterea 5•3 la puterea 2•5 la puterea 2-3 la puterea 4•5•4

Answer 1

3 la puterea5 x 3=3 x 5+3 x 3;;;;;;;;;;;;3 la puterea2 x 5=3 x 2 + 3 x 5;;;;;;;;;3 la puterea 2-3=3 x 2 -3 x 3;;;;;;;;;;;;;;;3 la puterea 4 x 5 x 4=3 *4+3*5+3*4;;;;;;

Answer 2

 $3^5\cdot3^2\cdot5^2\,-\,3^{4\cdot5\cdot4}=3^7\cdot5^2\,-\,3^{80}=3^7\cdot(5^2-3^{73})$