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Example: If a=8 and b=7, find the value of a^{2}+b^{2}. Solution: Substitute the values of 'a' and 'b' in the given equation. a^{2}+b^{2} = 8^{2}+7^{2} = 8x8 + 7x7 = 64+49 = 113. Directions: Find the values of the following expressions and enter your answers in the space provided. Also write at least 10 examples of your own. 