Answer:
49
Step-by-step explanation:
The formula for the whole square is
[tex]\left ( a+b \right )^2=a^{2}+2ab+b^{2}[/tex]
So, to make the complete square, in the expression
[tex]x^{2}+14x = - 32[/tex]
First take half of the term 14 x that is 7x and then divide it by x so it is 7. Now take its square that is 49. So add 49 on both the sides to make the given expression as a whole square.
