Question

3x^_5x=_x-9+2x^
B)4+x(x-4)=X
Me ajudem a resolver equação do 2 grau pfv!

Answer 1

b) 4+x(x-4)=x
4 +x2-4x=x
x2-5x+4=0
a) 1 x=5+- raiz51. x`=5+rai51
b) -5 2 2
c) x``=5-raiz 51
2