The equation using the polynomial function is a x⁴ - 6x³ + 7x² + 6x - 8.
According to the statement
We have to find that the equation using the polynomial function.
So, For this purpose, we know that the
A polynomial function is a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation
From the given information:
The standard form with zeros 1,-1, 2, and 4:
Polynomial with Zeros 1, - 1, 2 and 4 can be expressed thus :
x = 1 : x - 1
x = - 1 :x + 1
x = 2 :x - 2
x = 4 :x - 4
Hence, we have :
(x - 1)(x + 1)(x - 2)(x - 4) = 0
We can then expand ;
(x - 1)(x + 1) = x² + x - x - 1 = x² - 1
(x² - 1)(x - 2) = x³ - 2x²-x + 2
(x³ - 2x² - x + 2)(x - 4)
x⁴ - 4x³ - 2x³ + 8x² - x² + 4x + 2x - 8
x⁴ - 6x³ + 7x² + 6x - 8.
So, The equation using the polynomial function is a x⁴ - 6x³ + 7x² + 6x - 8.
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