angeliaminervini716 angeliaminervini716

01-04-2020
Mathematics

contestada

Solve.

x² + 4x + 4 = 18

x=−4±32‾√
x=2±32‾√
x=−2±32‾√
x=4±92‾√

Respuesta :

lawrencecimora lawrencecimora

01-04-2020

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 Link

elmono111 elmono111

13-10-2020

Answer:

Step-by-step explanation:

Ver imagen elmono111

Answer Link

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