Plz help me with this

We conclude that we must add 4² or 16 to complete the square.

Hence, option C i.e. 16 is the correct answer.

Step-by-step explanation:

We know that the perfect square formula is

(a + b)² = a² + b² + 2ab

Given the equation

Let us add 4² or 16 in the equation

as (a + b)² = a² + b² + 2ab, so

Therefore, we conclude that we must add 4² or 16 to complete the square.

Hence, option C i.e. 16 is the correct answer.

3. 16 must be added to the equation (x²+8x) to complete the square.

Step-by-step explanation:

Now, it is in the form of complete square :

→ x²+y²+2xy=(x+y)²

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.