Mathematics for IGCSE & O level - Algebraic Manipulation (Section 7 - No. 15)

What is the result of expanding (x + 5)^2?

x^2 + 25

x^2 - 25

x^2 + 10x + 25

x^2 - 10x + 25

(x+5)^2 is equivalent to (x+5)(x+5). Applying the FOIL method results to x^2 + 10x + 25