Resolva as equações do 2°grau me ajudem por favor
c)ײ+14×+49=0
e)y²+2(y+1)=0
f)ײ+3÷2 -3=×
g)×(-3×+7)-2=0
h)(×+5=1÷×+5=-5
i)(2y-1)²=(5-y)²
k)y÷2+1-y÷2-2y²÷3 =-1
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