1_Resolva as equações do 2° grau, através do Teorema de Báskara:

a)x²+5x+2=0

b)x²-3x+2=0

c)x²-8x+15=0

d)x²+3x-4=0

e)3x²+4x+1=0

f)x²+x-12=0

g)x²-=2x+8

h)6x=-x²-5

i)x-6=-12x²

j)x(4x+20)+25=0
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