Respuesta :
Answer:
x=−2+3√2
Step-by-step explanation:
x2+4x+4−18=18−18
x2+4x−14=0
For this equation: a=1, b=4, c=-14
1x2+4x+−14=0
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(1)(−14)
2(1)
x=
−4±√72
2
x=−2+3√2 or x=−2−3√2
Answer:
x=−2+3√2
Step-by-step explanation:
x2+4x+4−18=18−18
x2+4x−14=0
For this equation: a=1, b=4, c=-14
1x2+4x+−14=0
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(1)(−14)
2(1)
x=
−4±√72
2
x=−2+3√2 or x=−2−3√2