December 2019 1 62 Report
Dê o conjunto solução das seguintes equações:
a) x²-49=0
b) 2x²=50
c) x²-1=0
d) 8x²-8=0
e) 4x²-20=0
f) -25+x²=0
g) 7x²+2=30
h) x²+16=0
i)-x²=225
j)-4x²+5=-59
k)3x²+30=0
l)-49+x²=0
m)36=4x²

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