simplify the expressions and find their values if p = - 1, Q = 1 , r = 2 please give me correct answer and explanation also
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The given question is solved in the uploaded photos
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- p² and (- 1)
Step-by-step explanation:
7p² + q² - 8p² - q² = (7p² - 8p²) + (q² - q²) = - p²
- (- 1)² = - 1
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