can I multiply the denominator to make it disappear?

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sebastiano della gatta
回答： Walter Roberson 2022-1-2
f1=(- 11*c1^2 + 2043*c1*c3 + 11*c2^2 - 2043*c2 + 11*c3^2)^2 + (497*c2 + (3542*c3)/(c2 - c1*c3) + 11*c1*c2 - 497*c1*c3)^2 - 1;
I need to remove the denominator to have a linear equation, what should I do?

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采纳的回答

Walter Roberson
Walter Roberson 2022-1-2
Ran in:
syms f1 c1 c2 c3
eqn = f1 == (- 11*c1^2 + 2043*c1*c3 + 11*c2^2 - 2043*c2 + 11*c3^2)^2 + (497*c2 + (3542*c3)/(c2 - c1*c3) + 11*c1*c2 - 497*c1*c3)^2 - 1;
[LN, LD] = numden(lhs(eqn))
LN = 
LD = 
1
[RN, RD] = numden(rhs(eqn))
RN = 
RD = 
neweqn = simplify(LN * RD) == simplify(RN * LD)
neweqn = 

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