contestada

solve the following equation algebraically:
2 x squared = 98
a.
x = 7
b.
x = plus-or-minus 49
c.
x = plus-or-minus 7
d.
x = 49

Respuesta :

mathstudent55

Answer:

c.  [tex] x = \pm 7 [/tex]

Step-by-step explanation:

[tex] 2x^2 = 98 [/tex]

[tex] x^2 = 49 [/tex]

[tex] x = \pm\sqrt{49} [/tex]

[tex] x = \pm 7 [/tex]

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