SOLUTION: 1.) What is a polynomial function in standard form of degree 4 with zeros: -1, 2, 5i?
2.) Given f(x)=5x+1
Find f^-1(x) & verify the answer is correct by showing that (fo
Question 117426: 1.) What is a polynomial function in standard form of degree 4 with zeros: -1, 2, 5i?
2.) Given f(x)=5x+1
Find f^-1(x) & verify the answer is correct by showing that (fof^-1)(x)=x
3.) solve: a) log (x+4) - log 2x=0
b) 2ln x + 5 = 7
4.) Find all the zeros of the polynomial function: P(x)=2x^4+3x^3+16x^2+27x-18 then write the P(x) as a product of its linear factors.
You can put this solution on YOUR website! 1.) For any polynomial equation with real coefficients, complex roots occur in conjugate pairs.
So, if 5i i.e. (0 + 5i) is a root then (0 - 5i) is the other root.
Hence, the 4 zeros are x = -1, 2, 5i, - 5i
Hence the polynomial is
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2.)
f(x) = 5x + 1
5x = f(x) - 1
Hence,
