Question

find 5he value of ( 2m + n + 5p)​

Answer 1

Answer:

-10

Step-by-step explanation:

Formula,

(a+b+c)

2

=a

2

+b

2

+c

2

+2ab+2bc+2ca

Given,

(m+2n−5p)

2

=m

2

+(2n)

2

+(−5n)

2

+2(m)(2n)+2(2n)(−5p)+2(−5p)(m)

=m

2

+4n

2

+25p

2

+4mn−20np−10pm