Question

AYUDA

Calcula "n", sabiendo qie es entero positivo

n(n+1) = 42

n(n+1) = 90

n^2 +n = 132

n(n+3) = 70

n^2+3n = 208

LE DOY CORONITA​

Answer 1

Explicación paso a paso:

n(n+1) = 42

6(6+1)=42

n=6

n(n+1) = 90

9(9+1)=90

n=9

n^2 +n = 132

11²+11= 132

n=11

n(n+3) = 70

7(7+3)=70

n=7

n^2+3n = 208

13² + 3(13)= 208

n=13