Question

M²+6MN+N² para M= 2/3 e N= -1/2

Answer 1

Oi

m²+6.m.n + n²
(2/3)²+6.$\frac{2}{3} * \frac{-1}{2}$+$(\frac{-1}{2}) ^{2}$

($\frac{4}{9} + \frac{6.2.-1}{3.2} + \frac{1}{4}$

$\frac{4}{9} + \frac{-12}{6} + \frac{1}{4}$

$\frac{4}{9} -2+0,25$

$\frac{4}{9} -1,75$

$\frac{4-9.(-1,75)}{9}$

$\frac{4-15,75}{9}$$\frac{-11,75}{9}$

Bons estudos!!!