Question

(x+1) elevada a 2 potencia menos x elevado segunda potencia igual a 17

Answer 1

x +1 (2) - x (2)=17
x(2) + 1 +x (2)=17
x (2) + x (2)=17-1
2x (2)=16
2x= raiz de 16
2x=4
x=4÷2
x=2