Question

escreva as equacoes na forma geral a)x²=7x-12 b)2x²-3x=2x-1 c) 2x(4x-1)=21 d)(x-2)²=0 e) 1- (x-2)(x+1)=-1 f)(3x+1)²+(x-2)(x+1)=-1

Answer 1

a)x²=7x-12
 )x²-7x+12=0

b)2x²-3x=2x-1
2x²-3x-2x+1 =0
2x²-5x+1=0

c) 2x(4x-1)=21
8x²-2x-21=0

d)(x-2)²=0
x²-4x+4=0


e) 1- (x-2)(x+1)=-1
1-(x²+x-2x-2) +1=0
1 -x²-x+2x+2 +1=0
x²+x+4=0
 
f)(3x+1)²+(x-2)(x+1)=-1
9x²+6x+1+x²+x-2x-2-1=0
10x²+5x-2=0