Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 44)

What is the result of expanding (a + b)(a - b)?

a^2 + b^2

a^2 - b^2

a^2 + 2ab + b^2

a^2 - 2ab + b^2

Erläuterung

(a+b)(a-b) = a^2 - b^2

Kommentare (0)

Werbung