Question

7.
Find the value of pq - (2q)2 when
(a) p = 8 and q = 3​

Answer 1

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$pq - (2q) {}^{2} = (8)(3) - (2 \times 3) { }^{2} \\ = 24 - (6) { }^{2} \\ = 24 - 36$

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