SOLUTION: I have an multiplication problem with a binomial.The problem is( 4x with a square root of two minus 3y)multiply it by itself

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Question 16526: I have an multiplication problem with a binomial.The problem is( 4x with a square root of two minus 3y)multiply it by itself
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
+%284x%2Asqrt%282%29+-+3y%29%2A%284x%2Asqrt%282%29-3y%29

Most people like to use FOIL on this one:
First times first will be 4x%2Asqrt%282%29%2A+4x%2Asqrt%282%29 or 16x%5E2%2A2 or 32x%5E2
Outer times outer will be 4x%2Asqrt%282%29%2A+%28-3y%29 or -12x%2Ay%2Asqrt%282%29+
Inner times inner will be %28-3y%29%2A+4x%2Asqrt%282%29or -12x%2Ay%2Asqrt%282%29+
Last times last will be %28-3y%29%2A%28-3y%29+ or %2B9y%5E2

Put it all together, and you should get:
32x%5E2-12%2Asqrt%282%29%2Ax%2Ay%2B9y%5E2

R^2 at SCC