Question

38. What is to be subtracted from a² + ab +67, so that
the difference is equal to (a - b)2?​

Answer 1

Answer:

3ab - b² - 67

Step by step explanation:

Let the number to be subtracted be x

According to the question,

= a² + ab + 67 - x = (a - b)²

= -x = (a - b)² - (a² + ab + 67)

= -x = a² - 2ab + b²- a²- ab + 67

= -x = b² - 3ab + 67

= x = 3ab - b² - 67

Hope it helps!!