Answer:
The correct answer is Option C . d -5
Step-by-step explanation:
Identity: (a + b)(a - b) = a² - b²it is given that,
it is given that,
(d - 5)(?) = d² - 25
LHS = (d - 5)(?)
RHS = d² - 25
we can compare this with the identity.
here, a = d and b = 5
therefore we can write and start with RHS
RHS = d² - 25 = d² - 5² = (d +5)(d - 5) = LHS
(d +5)(d - 5) = d² - 25
Therefore option C. (d- 5) is the correct answer.
