(gfh)2
f2g2h2
54goh79
g2f5h7
1f2h2
Correct answer is A
f12g2h12 ÷ f52goh73 = f12 - 52 g2 - 0 h12 - 73
f-2 g2 h-2
= g2f2h2
= (gfh)2
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