Question

me ajudem pfv a responder essas equações
${x}^{2} - 25 = 0$
${2x}^{2} - 98 = 0$
$24 = {6x}^{2}$
${64x}^{2} - 1 = 0$
${7x}^{2} - 14 = 0$
${ - x}^{2} + 49 = 0$
$- 25 + {100x}^{2} = 0$
${x}^{2} - \frac{81}{4} = 0$
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Answer 1

Resposta:

a) 5

b) x^2=98/2

x^2= 49

x= 7

c) 24=6x^2

24/6=x^2

4=x^2

2=x

d)x^2= 1/64

x= 1/8

e)x^2=14/2

x= raiz de 7

f) x^2=49

x=7

g)100x^2=25

x^2=25/100

x^2=1/4

x= 1/2

h) x^2= 81/4

x= 9/2