By “simplifying<span>” an algebraic expression, we </span>mean<span> writing it in the most ... </span>Example: x2<span> + 2x + 3x</span>2<span> + 2 + 4x + 7 ... </span>Then<span> we collect the first powers of x, and see that there are six of them (2x + 4x). ... What you</span>need<span> to remember is that the minus sign indicating subtraction </span>should<span> always be thought of as adding the opposite.
To reduce a fraction to its lowest terms by canceling to the lowest common factor for both numerator and denominator or to condense an algebraic expression by grouping and combining similar terms. Simplifying makes a algebric expression easily understandable and solvable.