Simplify : ( X + 6 )( X - 4 )( X - 2 ) - Mathematics

Simplify : ( x + 6 )( x - 4 )( x - 2 )

Sum

Using identity :
(x + a)(x + b)(x + c) = x³ + (a + b + c)x² + (ab + bc + ca)x + abc

(x + 6)(x - 4)(x - 2)
= x³ + (6 - 4 - 2)x² + [6 × (-4) + (-4) × (-2) + (-2) × 6]x + 6 × (-4) × (-2)
= x³ - 0x² + (-24 + 8 - 12)x + 48
= x³ - 28x + 48

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Chapter 4: Expansions (Including Substitution) - Exercise 4 (E) [Page 66]

Chapter 4 Expansions (Including Substitution)
Exercise 4 (E) | Q 1.4 | Page 66

Simplify : ( x + 6 )( x + 4 )( x - 2 )

Simplify : ( x - 6 )( x - 4 )( x - 2 )

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