Question

resolva a equaçao
a)x²-25=0
b) 2x²-98=0
c) 24=6x²
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Answer 1

a)x²-25=0

x²=25

x=±√25

x=±5

b)2x²-98=0

2x²=98

x²=98/2

x²=49

x²=±√49

x²=±7

c)24=6x²

24/6=x²

x²=4

x=±√4

x=±2