Given the equation: x^2-12=-15 By using the equation editor or uploading a picture, rewrite the equation in the form:
(x-h)^2=k

Given :-

To Find :-

Solution :-

The given equation to us is ,

x² - 12x = -15

Now for completing the square ,

x² -2(6)(x) = -15

x² - 2(6)(x) + 6² = 6² - 15

(x -6)² = 6² - 15

(x -6)² = 36 -15

(x - 6)² = 21

Hence the required answer is (x-6)² = 21.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.