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{{ printedBook.courseTrack.name }} {{ printedBook.name }} Terms are numerical or algebraic expressions that are added or subtracted. If the terms are algebraic the operations are performed by combining like terms. $3x^2+3x - 4 - 2x +3+7x^2 =10x^2+ x+1$ Here, that means that the $x^2$-terms, $x$-terms, and constants are added separately.