Question

What will be the 1st answer?

Answer 1

Answer:

x will multiply.............

Answer 2

Answer:

{....,0,1,4,9,16,....}

Step-by-step explanation:

x^2+4x+4=0

=)x^2+2x+2x+4=0

=)x(x+2)+2(x+2)=0

=)(x+2)(x+2)=0

As integer is given we may start the set from -2 in the negative side of the number line as the set is infinite, and continuing to do so till 2 in the positive side of the number line.

When x=-2,

(-2+2)(-2+2)

=0

When x=-1,

(-1+2)(-1+2)

=1

When x=0

(0+2)(0+2)

=2*2

=4

When x=1,

(1+2)(1+2)

=3*3

=9

When x=2,

(2+2)(2+2)

=4*4

=16

Therefore, the set is

{....,0,1,4,9,16,....}