Question

Resolva as equações do 2 grau
a)x²+9=4
b)25x²=20x-4
c)2x=15-x²
d)x²+3x-6=-8
e)x²+x-7=5
f)4x²-x+1=x+3x²
g)3x²+5x=-x-9+2x²
h)4+x(x-4)=x
i)x(x+3)-40=0

Answer 1

Ai ninguém responde tbm quero saber oque VC quer saber que raiva ja