Question

2
4
X + y
2 4
X + y
(iv) 3
3​

Answer 1

Answer:

Step-by-step explanation:

(a ± b)² = a² ± 2ab + b²

$(\frac{2}{3} x)^2$ + 2( $\frac{2*4}{3*5}$ )xy + $(\frac{4}{5}y)^2$ =

$\frac{4}{9}$ x² + $\frac{4}{15}$ xy + $\frac{16}{25}$ y²