Resolva os itens utilizando propriedades das potências. 1) 9²×9³
2) 10³:10²
3)(5²)³
4) (9×7)²​

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126