64p²+121q²+1+176pq-22q-16p
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7
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(a+b+c)²=a²+b²+c²+2ab+2bc+2ca
(4p)²+(11)²+1+2×4×11-2×11×1-2×1×4
(4p+11-1)²
(4p+11-1) (4p+11-1)
Fol.low me.
Answered by
14
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