Question

if (x-y)² = 441 and xy = 46, find the value of x² + y².

Answer 1

Step-by-step explanation:

we know that, (x-y)²=x²+y²-xy

Answer 2

Answer:

533

Step-by-step explanation:

(x - y)² = 441

x² + y² - 2xy = 441 [(a-b)²=a²+b²-2ab]

x² + y² - 2×46 = 441

x² + y² - 92 = 441

x² + y² = 441 + 92

x² + y² = 533