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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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Consider an election with 681 votes a) If there are 5 candidates, what is the smallest number of first-place votes a candidate c

joja [24]

Answer:

137 votes

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considering an election with 681 votes and 5 candidates up for the election

dividing the votes among'st 5 candidates

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3 years ago

Find all solutions of the equation sin^2 x=2sinx+3

Mashutka [201]

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which means either $\sin x=3$ or $\sin x=-1$ . The equation has no solution, since $\sin x$ is always bounded between -1 and 1. The second has one solution at $x=-\dfrac\pi2$ , and any number of complete revolutions will also satisfy this equation, so in general the solution would be $-\dfrac\pi2+2k\pi$ where $k$ is any integer.

So you could choose $A=-\dfrac\pi2$ and $B=2$ .

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