Can anyone tell me what is the difference between this= (x+y)3 = x3+y3+3x2y+3xy2
and this= x2+y2= (x+y)(x2-xy+y2)
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xy + y2) x3 + y3 + z3 – 3xyz = (x + y + z) (x2 + y2 + z2 – xy – yz – zx) ... Which one of the following is a polynomial? (A). 2. 2. 2.
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