UPSKILL MATH PLUS

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Answer variants:
x3+15x2+74x+120
27x39x218x+8
4x2+9y2+16z2+12xy+24yz+16xz
1. Expand \((2x + 3y + 4z)^2\).
 
Answer:
 
\((2x + 3y + 4z) =\)
 
2. (i) Expand \((x + 5)(x + 6)(x + 4)\).
 
Answer:
 
\((x + 5)(x + 6)(x + 4) =\)
 
(ii) Expand \((3x - 1)(3x + 2)(3x - 4)\).
 
Answer:
 
\((3x - 1)(3x + 2)(3x - 4) =\)