Question

खाली स्थान भरो -

1. ( a + b )² = ______

2. ( a - b )² = _______

3. ( a + b ) ( a - b ) = ______

4. ( x + a ) ( x + b ) = _______​

Answer 1

Step-by-step explanation:

1. a²+2ab+b²

2. a²-2ab+b²

3. a²-b²

4. x²+(a+b)x + ab

Answer 2

EXPLANATION

(1) (a + b)² = a² + b² + 2ab

(2) (a - b)² = a² + b² - 2ab

(3) (a + b) (a - b) = a² - b²

(4) (x + a) (x + b) = x² + xb + ax + ab