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Match coefficientsTechnique

Technique

Match coefficients

Turn one identity into one equation per power

3 min 3 steps

An identity looks like one equation and turns out to be several. I respect anything that carries that much in its pockets.

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The first step is free. A free account opens the rest.

Calls on

Like terms share the same variable partFactCombine terms only when letters and powers match

Used by

Zero, one, or infinitely many solutionsTacticCompare slopes and intercepts instead of solving
Rearrange a literal equationTacticSolve for one letter as if the rest were numbers
Find constants from an identityTacticMatch every power of x and the constants fall out