How is adding radical expressions similar to adding polynomial expressions? You add the numbers in front of the radical signs, just as you add the coefficients in front of the like variables Notice the similarities: 3 cats + 2 cats = 5 cats 3x + 2x = 5x 3√2 + 2√2 = 5√2 1 dog + 6 dogs - 4 dogs = 3 dogs x + 6x - 4x = 3x √5 + 6√5 - 4√5 = 3√5 © Algebra House
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