3 years ago

1. f(x) = x(x-6)(x+3)

Mathematics

1 answer:

maks197457 [2]3 years ago

5 0

Answer:

x3squared-3x2squared-18x

Step-by-step explanation:

1 Expand by distributing terms.

({x}^{2}-6x)(x+3)(x

−6x)(x+3)

2 Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd.

{x}^{3}+3{x}^{2}-6{x}^{2}-18xx

+3x

−6x

−18x

3 Collect like terms.

{x}^{3}+(3{x}^{2}-6{x}^{2})-18xx

+(3x

−6x

)−18x

4 Simplify.

{x}^{3}-3{x}^{2}-18xx

−3x

−18x

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