Solve 2x3-3x2=6x-9 Find all true and imaginary number roots of the polynomial equation 3x4-x3+4x2-2x-4=0 Find the sum and crossroad of the roots of 2x3-5x2-x+8=0 Find a cubic equation with integral coefficients and roots 3i and -5. 14. P(x) is a cubic polynomial with real coefficients. Explain why an imaginary number cannot be a double root of the equation P(x)=0. ANSWERS a) 20 b) 0 c) -2-9i -2 x3+2x2+2x+17 -2 (double) 5. y=1/2(x+2)(x-1)(x-3) 800m2 a) use the location principle: P(1)=-20 b) -0.16, 1.6 9. 3/2, + and - ?3 10. -2/3, 1, + and i?2 12. sum=5/2; product= -4 If you want to proceed a full essay, order it on our website: Ordercustompaper.com
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