Question

Multimea solutiilor ecuatiei 4xpatrat la patrat+8x=-4 este:

Answer 1

$(4^{2} x^{4} )+8x=-4$$16 x^{4} +8x=-4$
$8x(2 x^{3} +1)=-4$

Answer 2

4x²+8x= -4⇒4x²+8x+4=0⇒(2x+2)²=0⇒2x+2=0⇒2x=-2⇒x= -1⇒S=-1