Question

resolver as sequintes equaçao do 2°gral sendo U=R

a)x²-49=0
b)x²=1
c)2x²-50=0
d)7x²-7=0
e)4x²=36
f)5x²-15=0

presiso do calculo .e desde ja agradeso

Answer 1

Olá Luana

a)

x² - 49 = 0

x² = 49

x1 = 7
x2 = -7

b)

x² = 1

x1 = 1
x2 = -1

c)

2x² = 50

x² = 25

x1 = 5
x2 = -5

d)

7x² = 7

x² = 1

x1 = 1
x2 = -1

e)

4x² = 36

x² = 9

x1 = 3
x2 = -3

f)

5x² = 15

x² = 3

x1 = √3
x2 = -√3

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