Question

calcule a equação 6x2+130x+600=0

Answer 1

6.2+130x+600=0
12+130x+600=0
130x=0-12-600
130x=-612
x= -612÷130 = 301/65

Viquei em duvida com aquele primero x, mas a resposta ta dada

Answer 2

6$x^{2}$ +130x + 600 = 0
coeficientes: a = 6 b = 130 c = 600
x = -b +/- $\sqrt{delta}$/ 2.a

delta = $b^{2}$ - 4 .a.c
= $-130^{2}$ - 4 . 6 . 600
= 16900 - 14400
= 2500
x = -b +/- $\sqrt{delta}$/ 2.a
x = -130 +/- 50/ 2.a
x' = 130 + 50/2
x' = 180/2
x' = 90
x'' = 130 - 50/2
x'' = 80/2
x'' = 40