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andrew11 [14]
3 years ago
5

Write a polynomial function in standard form with the given zeros 1, -1, -4

Mathematics
1 answer:
Reil [10]3 years ago
4 0

since its the zeros it should be x -/+ something

(x-1)(x+1)(x+4)

multiply for standard form

((x^2)-1)(x+4)

x^3-x

+    x^2 -4

x^2 + x^2 -x -4

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What is the value of x?
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\left\{\begin{array}{ccc}x+2y=4&\text{multiply both sides by 5}\\4x-5y=42&\text{multiply both sides by 2}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}5x+10y=20\\8x-10y=84\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad13x=104\qquad\text{divide both sides by 13}\\\\\boxed{x=8}\\\\Answer:\ \boxed{\boxed{x=8}}

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