Question

x²-4x-12=0 o-o me ajudem pfvr

Answer 1

a= 1 b= -4 c= -12
delta
b²-4ac
(-4)²-4.1(-12)
16+48
64

forma de bascará

-b ±√delta
2.a
+4 ±√64
2.1
+4+8
2
-4+8
2

12 = 6
2 1

4 = 2
2 1


S= (2,6)