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Mathematics 16 Online
OpenStudy (anonymous):

factor completely 6m2-25n2

OpenStudy (anonymous):

Factor completely: 16m2 – 25n2

OpenStudy (anonymous):

these are difference of squares factoring... are you familiar with how to do this?

OpenStudy (anonymous):

no because there are no number that can go into both numbers an they have different letters

OpenStudy (anonymous):

would it be 2m+6m+5m+5m?

OpenStudy (anonymous):

5n+5N*

OpenStudy (anonymous):

There is a method on how to factor this called "difference of squares". Its when you have a first number that is a perfect square minus a second number that is a perfect square. 16, m^2 and 25, n^2 are perfect squares. Have you heard of this before?

OpenStudy (anonymous):

2M+8m+5n+5n

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

Okay so this is how the formula looks: a^2-b^2 (a and b stand for any perfect square numbers) this factors to (a-b)(a+b) understand that?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

would it be 4-4 and 5+5?

OpenStudy (anonymous):

(m-4) (m+4)

OpenStudy (anonymous):

and (n-5) (n+5)

OpenStudy (anonymous):

are u still there?

OpenStudy (anonymous):

sorry, I had to go for a minute. You are close, but not quite. Hint: "a"=4m and "b"=5n can you try that now?

OpenStudy (precal):

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