Question

3/4m+2/5n)^2
Maths
plzzzz give a perfect ans​

Answer 1

Answer:

answer for the given problem is given

Answer 2

$\star\:\:\:\bf\large\underline\blue{Question:-}$

• Evaluate ${( \frac{3}{4}m + \frac{2}{5}n) }^{2}$

$\star\:\:\:\bf\large\underline\blue{Solution:-}$

We know that,

${(x + y)}^{2} = {x}^{2} + {y }^{2} + 2xy$

So,

${( \frac{3}{4}m + \frac{2}{5}n) }^{2}$

$= {( \frac{3}{4}m) }^{2} + {( \frac{2}{5} n)}^{2} + 2 \times \frac{3}{4} m \times \frac{2}{5} n$

$= \frac{9 { m}^{2} }{16} + \frac{3mn}{10} + \frac{4 {n}^{2} }{25}$

$\star\:\:\:\bf\large\underline\blue{Answer:-}$

• $\frac{9 { m}^{2} }{16} + \frac{3mn}{10} + \frac{4 {n}^{2} }{25}$