Question

what is the solution of
(p+q) ²-20(p+q)-125

Answer 1

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$(p + q)^{2} = {p}^{2} + 2 \times p \times q + {q}^{2}$
(p+q)^2-20(p+q)-125
p^2+2pq+q^2-20p-20q-125

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