3 years ago

Need help quick ;w; n. 6

Mathematics

1 answer:

givi [52]3 years ago

6 0

Answer:

The first, second, third, and last ones are correct.

Step-by-step explanation:

The first one is the exact same as the last one, the second one you just square everything, and the third one only squares the x. The fourth one is wrong because that equals 81x^2-y^2. Hope this helps!

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