Use Descartes's rule of signs to determine the possible number of:
a) positive real roots of
b) negative real roots of
c) positive real roots of
d0 negative real roots of

Analyze the solution below. 7 3 x = −2 7 3 x(3 7 ) = −2(3 7 ) x = − 6 7 what property was used to solve the equation? property of opposites division property of equality addition property of equality multiplication property of equality