The diagram represents a difference of squares.



What are the factors of m2 – 6m + 6m – 36?

A(m – 2)(m + 18)
B(m – 3)(m + 3)
C(m – 4)(m + 9)
D(m – 6)(m + 6)

Verified Answer :

The answer is d. 

Explanation:
To start with, classify the first two terms and factor out the common factor. i.e m is a common factor of m2-6m. By factoring it out we get m(m-6).

Follow the same procedure for terms three and four. ie
6 is a common factor of 6m-36. By factoring out, 6(m-6)
Regrouping
m(m-6)+6(m-6)
By factoring out (m-6), we get:
(m-6)(m+6)

Answer:

Option D \((m-6)(m+6)\)

Step-by-step explanation:

we have

\(m^{2} -6m+6m-36\)

Simplify

\(m^{2} -6m+6m-36=m^{2} -36\)

we know that

In a difference of square

\((a^{2}-b^{2})=(a+b)(a-b)\)

Remember that

\(36=6^{2}\)

therefore

\((m^{2}-6^{2})=(m+6)(m-6)\)