Evaluate: $\dfrac{(2.39)^2-(1.61)^2}{3.39-1.61}$
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Explanation:
Given Expression =$\dfrac{a^2- b^2}{a - b} $=$ \dfrac{(a + b)(a - b)}{(a - b)} $= a + b = 2.39 + 1.61 = 4.
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Evaluate: $\dfrac{(2.39)^2-(1.61)^2}{3.39-1.61}$
Given Expression =$\dfrac{a^2- b^2}{a - b} $=$ \dfrac{(a + b)(a - b)}{(a - b)} $= a + b = 2.39 + 1.61 = 4.