Separated into factors; calculated by breaking down into component parts, or the past tense of 'factor' (to break into factors).
From 'factor' plus '-ed' (past tense or adjectival suffix). The verb 'factor' comes from 'factor' (a divisor), so 'factored' shows the action of finding those divisors.
When your math teacher asks you to solve a 'factored equation,' they're actually giving you an easier problem—the hard work is already done. Spotting a factored form is like receiving a puzzle where the pieces already show the image.
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