Question: f ( x ) = 4 x 6 + 2 x 5 - 7 x 4 + x 3 - 3 x 2 + 5

f(x)=4x6+2x5-7x4+x3-3x2+5x
a) How many positive and how many negative real roots are possible?
Do not graph and use the rules we learned.
b) List the possible rational roots and use them in the function to prove which are roots.
f(x)=4x6+2x5-7x4+x3-3x2+5x a) How many positive and how many negative real roots

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