Holly finds that (11m – 13n + 6mn) – (10m – 7n + 3mn) = m – 20n + 9mn. What error did Holly make?

Mathematics

2 answers:

jekas [21]3 years ago

6 0

She added the polynomials instead of subtracting.

notsponge [240]3 years ago

4 0

Answer:

A.)she only used the additive inverse of 10m when combining like te

Step-by-step explanation:

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