Question

only answer if you know the answer. help me with maths please. please write the answer with the method ​

Answer 1

Answer:

i) 0

ii) $\frac{4}{9} m^2 + \frac{9}{4}n^2 + 2mn$

Step-by-step explanation:

i) (ab -bc) + (bc-ac) + (ac-ab)

 ab-bc+bc-ac +ac-ab

= 0

ii)

$(\frac{2}{3}m + \frac{3}{2}n)^2 \\=> (a+b)^2 = a^2 +b^2 + 2ab\\=> (\frac{2}{3}m)^2 +(\frac{3}{2}n)^2 +2(\frac{2}{3}m)(\frac{3}{2}n)\\=> \frac{4}{9}m^2 + \frac{9}{4}n^2 +2mn$