Question

x + y = 18 ও xy = 72 হলে (x)2 + (y)2 = ?​

Answer 1

Answer:

180

Step-by-step explanation:

X+y = 18

Xy= 72

X²+y²=?

= (x+y) ²= x²+y²+2xy

= (18)² = x²+y² + 2(72)

324 = x²+y²+144

X²+y²=180

The answer is 180