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How do you multiply #(3t^2-2w)^2 #?

1 Answer

Jul 9, 2015

#9t^4-12t^2w+4w^2#

Explanation:

Use the quadratic expansion:
#(a+b)^2=a^2+2ab+b^2# with #a=3t^2# and #b=-2w#
This gives:
#(3t^2-2w)^2=9t^4-12t^2w+4w^2#

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