Question

Factorise:
16p^2 + q^2 +4r^2 - 8pq+ 4qr -16pr .
Help me Plz....
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Answer 1

(4p-q-2r)^2

Explanation:

(4p-q-2r)^2

Answer 2

(4p-q-2r)^2

Explanation:

Use the perfect square formula, a^{2}+b^{2}+c^{2}+2ab+2ac+2bc=\left(a+b+c\right)^{2}, where a=4p, b=-q and c=-2r.