Question

Qual o valor de x na P.G. literal (x+1;x+4;x+10)?

Answer 1

(x+10)/(x+4) = (x+4)/(x+1) 

(x+10)(x+1) = (x+4)² 
x²+11x+10 = x²+8x+16 
11x-8x = 16-10 
3x = 6 
x = 2