Mathematics for IGCSE & O level - Algebraic Manipulation (Section 6 - No. 46)

Expand (x+4)(x+1)

x^2 + 5x + 4

x^2 + 3x + 4

x^2 + 4x + 1

x^2 + 5x + 5

Paaiškinimas

(x+4)(x+1) = x^2 + x + 4x + 4 = x^2 + 5x + 4

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