Question 68311
X+H
X+H MULTIPLY THESE TWO TERMA
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X^2+XH+XH+H^2
X^2+2XH+H^2
X+H MULTIPLY THESE TWO TERMS
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X^3+2X^2H+XH^2+X^2H+2XH^2+H^3
X^3+3X^2H+3XH^2+H^3 ANSWER