Question

Write the missing factor.

Answer 1

Hello from MrBillDoesMath!

Answer:

Choice D, d+5

Discussion:

(d+5) ( d-5) = d^2 - 25 so the answer is (d+5) or choice D

Thank you,

MrB

Answer 2

The correct answer is Option C . d -5

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.