A few days ago
algebra 2 q?
(2x^3-5)^2
i got 4x^6-20x^3+10
my teacher marked it correct,then crossed it out and put -1
is it 4x^9??
idk help! thank:)
Top 3 Answers
A few days ago
Favorite Answer
(2x^3-5)^2=
4x^6-20x^3+25
You took 5^2 and got 10, not 25.
Close, but not correct.
0
A few days ago
4x^6-20x^3+25 (you put 10–it is 5 times 5 not 2 times 5)
0
A few days ago
4x^6-20x^3+25
-5*-5=25 you added and should have multiplied the last 2.
0
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