Brainliest help please

answer is option C

option-C

25

Step-by-step explanation:

we are given

Since, we have to complete square of left side term

so, we can use formula

so, we can split middle terms in 2ab form

we can write as

now, we can compare this with formula and find 'a' and 'b'

we get

a=x and b=5

so, b^2 term is missing to complete square

so, we should add both sides by b^2 or 5^2 because b=5

we get

So, we will add 5^2 or 25