Question

Dacă m+n=317,n+p=548,calculați m+n2+p=?

Answer 1

m+n=317
n+p=548
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m+2n+p=?

(m+n)+(n+p)=m+2n+p
317+548=865
m+2n+p=865

m+p=865-2n
2n=(548-317)*2
2n=231*2
2n=462
n=462:2
n=231

m+n=317
m+231=317
m=317-231
m=86

n+p=548
231+p=548
p=548-231
p=317

m+2n+p=865
86+(2*231)+317=
=86+462+317
=548+317
=865

Answer 2

548-317=231 (n)
317-231=86 (m)
231×2=462 (n2)
548-231=317 (p)
m+n2+p=?
86+462+317=865