Question

identities of Algebraic expression​

Answer 1

Answer:

Identities of algebraic expressions:

• (a + b)² = a² + 2ab + b² (I)

• (a - b)² = a² - 2ab + b² (II)

• (a + b)(a - b) = a² - b² (III)

• (x + a)(x + b) = x² + (a + b) x + ab (IV)