Question

Si: m-n = 8
E = (m - 3n)^2 - 4n(2n - m) + 8

Answer 1

Respuesta:

72

Explicación paso a paso:

72

Explicación paso a paso:

( {m - 3n)}^{2} - 4n(2n - m) + 8(m−3n)

2

−4n(2n−m)+8

{m}^{2} - 2(m)(3n) + ( {3n)}^{2} - 8 {n}^{2} + 4mn + 8m

2

−2(m)(3n)+(3n)

2

−8n

2

+4mn+8

{m}^{2} - 6mn + 9 {n}^{2} - 8 {n}^{2} + 4mn + 8m

2

−6mn+9n

2

−8n

2

+4mn+8

({m}^{2} - 2mn + {n}^{2}) + 8(m

2

−2mn+n

2

)+8

( {m - n)}^{2} + 8(m−n)

2

+8

{8}^{2} + 88

2

+8

64 + 864+8

72