Question

how many quadratic polynomial have zero in x2+4x+4​

Answer 1

Answer:

$x=-2$

Step-by-step explanation:

$x^2+4x+4$

$x^2+2x+2x+4$

$x(x+2)+2(x+2)$

$(x+2)(x+2)$

$(x+2)=0$

$x=-2$

Hence this quadratic polynomial has two equal and real zeros