Question

5mn-9m+16n and 8mn-5n-3m​

Answer 1

Answer:

LHS

\begin{gathered}= ( \frac{4}{3} m - \frac{3}{4} n) ^{2} + 2mn \\ =( \frac{16}{9} m ^{2} + \frac{9}{16} {n}^{2} - 2mn) + 2mn \\ = \frac{16}{9} {m}^{2} + \frac{9}{16} {n}^{2}\end{gathered}

=(

3

4

m−

4

3

n)

2

+2mn

=(

9

16

m

2

+

16

9

n

2

−2mn)+2mn

=

9

16

m

2

+

16

9

n

2

Answer 2

equation :- 5mn-9m+16n and 8mn-5n-3m

= 5mn-9m+16n+8mn-5n-3m

= 5mn+8mn-9m-3m+16n-5n

= 13mn-12m+11n answer

thank you