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If x2+20xy+100y2=(x+ay)2,x^2+20xy+100y^2=(x+ay)^2,x2+20xy+100y2=(x+ay)2, what is the value of aaa?
If x2+121−(x−a)2=22x,x^2+121-(x-a)^2=22x,x2+121−(x−a)2=22x, what is the value of aaa?
If 16x2+56xy+49y2=(ax+by)2,16x^2+56xy+49y^2=(ax+by)^2,16x2+56xy+49y2=(ax+by)2, what is the value of ababab?
Given a−b=42+126,b−c=42−126,a-b=\sqrt{42+12\sqrt{6}}, b-c=\sqrt{42-12\sqrt{6}},a−b=42+126,b−c=42−126, what is the value of a2+b2+c2−ab−bc−ca?a^2+b^2+c^2-ab-bc-ca?a2+b2+c2−ab−bc−ca?
What is the coefficient of xxx in the expansion of (x+3)2 (x+3 ) ^ 2 (x+3)2?
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