Question

hallar solución de cada ecuacion:
1. X^2 + 16 = 64
2. 5X^2 + 40 = 60
3. 57 = 30 - X^2
4. -y^2 + 8 = -5y^2
​

Answer 1

Respuesta:

Explicación paso a paso:

1. X^2 + 16 = 64

x2+16−16=64−16

x2=48

x=±√48

x=4√3

2. 5X^2 + 40 = 60

5x2+40−40=60−40

5x2=20

5x2 /5 = 20 /5

x2=4

x=±√4

x=2

3. 57 = 30 - X^2

57=−x2+30

57+x2=−x2+30+x2

x2+57=30

x2+57−57=30−57

x2=−27

x=±√−27

4. -y^2 + 8 = -5y^2

−y2+8+5y2=−5y2+5y2

4y2+8=0

4y2+8−8=0−8

4y2=−8

4y2 /4 = −8 /4

y2=−2

y=±√−2

​