Question

expand (4p – 2q + 5r) the whole square

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Using the form (a+b+c)2, where a=4p,b=−2q,c=5r.

Thus

(4p−2q+5r)2= (4p)2+(−2q)2+(5r)2+2(4p)(−2q)+2(−2q)(5r)+2(5r)(4p)

=16p2+4q2+25r2−16pq−20qr+40rp