Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 155553: i need help with this question. i don't understand how to do it. (y^2-4w^2)^2: i need help with this question. i don't understand how to do it. (y^2-4w^2)^2
Answer by checkley77(3380) About Me  (Show Source):
You can put this solution on YOUR website!
(y^2-4w^2)^2
y^2-4w^2
y^2-4w^2 Now multiply
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y^4-4y^2w^2-4y^2w^2+16w^4
y^4-8y^2w^2+16w^2 Answer.
Question 155553: i need help with this question. i don't understand how to do it. (y^2-4w^2)^2: i need help with this question. i don't understand how to do it. (y^2-4w^2)^2
Answer by stanbon(18719) About Me  (Show Source):
You can put this solution on YOUR website!
(y^2-4w^2)^2 = (y^2)^2 - 2(y^2)(4w^2) + (4w^2)^2
= y^4 - 8y^2w^2 + 16w^4
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Cheers,
Stan H.