2x²-50=x²+5x
Boa tarde, Djepheson. Tudo bem?
2x2- 50 = x2 + 5x
2x2 - x2 - 5x - 50 = 0
x2 - 5x - 50 = 0
Delta = (-5)2 - 4 . 1 . (-50) = 25 + 200 = 225
x = -(-5) + raiz(225)/2.1 = 5 + 15/2 = 20/2 = 10
Ou
x = -(-5) - raiz(225)/2 . 1 = 5 - 15/2 = -10/2 = -5
S = {-5, 10}
2x²-x²-5x-50=0
x²-5x-50=0
x=(5+-raiz(25+200))/2
x=(5+-15)/2
x1=10
x2=-5