Question

FUNDAMENTAL CONCEPTS OF ALGEBRA

Answer the above question if
p - 3
q - (-5)
r - 4

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Answer 1

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Answer 2

${p}^{2} + {q}^{2} + {r}^{2} - pq - qr - pr$

After adding the value

3² + ( -5² ) + 4²- (3 × -5) - (-5 × 4) - (3 × 4)

9 + 25 + 16 - ( -15 ) - ( -20 ) - 12

50 + 15 + 20 - 12

43

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