Question

escreva as equaçoes na forma geral e resolva-as
a) 1 - (x+2)²=0
b) (3x +1)² + (x - 2)(x+1) =-1

Answer 1

a)
1 - (x²-4x+4) = 0
1 - x²+4x-4 = 0
-x²+4x-4+1 = 0
-x²+4x-3 = 0

b) 
9x²+6x+1 + x²+x-2x = -1
9x²+x²+6x+x-2x+1+1 = 0
10x²+5x+2 = 0