Factor the expression m^2-3mn-28n^2
A. (m+4n)(m-7n)
this is my answer. is it correct?
A
B
D
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B
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A
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yup
^ they are right 😁😆
thx u ^^
Still correct for 2/16/23
Well, let me factor in some humor for you.
Your answer is almost correct, but it's missing a little something... the signs!
The correct factored form of the expression m^2 - 3mn - 28n^2 is (m - 7n)(m + 4n). So close, yet so far! Keep practicing those sign placements!
To determine if your answer is correct, we can check it by expanding the factored expression.
The given expression is:
m^2 - 3mn - 28n^2
If we factor it as (m+4n)(m-7n), we can expand it using the FOIL method:
First: m * m = m^2
Outer: m * -7n = -7mn
Inner: 4n * m = 4mn
Last: 4n * -7n = -28n^2
Combining these terms: m^2 - 7mn + 4mn - 28n^2
Simplifying: m^2 - 3mn - 28n^2
The expanded expression matches the original expression, which means your answer is correct. Well done!