Question

30x^2-61x+30=0

resolver x

Answer 1

Respuesta:

Explicación paso a paso:

30x^ - 61x + 30 = 0

a = 30; b = - 61; c = 30

∆ = b^2 - 4(a)(c)

∆ = (-61)^2 - 4(30)(30)

∆ = 3721 - 3600

∆ = 121

x = - b±√∆ / 2(a)

x = -(-61)±√121 / 2(30)

x = 61±11/60

x1 = 61 + 11/60
x1 = 72/60
x1 = 6/5
x1 = 1,2

x2 = 61 - 11/60
x2 = 50/60
x2 = 5/6