Adding and subtracting rational expressions is similar to adding fractions. When adding and subtracting rational expressions, we find a common denominator and then add the numerators. To find a common denominator, factor each first. This strategy is especially important when the denominators are trinomials.
Sample Problems (6)
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If the area of a square is 49m² + 28m + 4, find the side length.
Find the missing term of the perfect square trinomial: