Find the roots of the polynomial equation 2x^3+2x^2-19x+20=0
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FACTORS (x+4)(2^2−6x+5)=0
Set x+4x equal to 0 and solve for x.
x=−4
Set 2^2−6x+5 equal to 0 and solve for x.
x=3/2+i/2,3/2−i/2
Ans x=−4,3/2+i/2,3/2−i/2
Set x+4x equal to 0 and solve for x.
x=−4
Set 2^2−6x+5 equal to 0 and solve for x.
x=3/2+i/2,3/2−i/2
Ans x=−4,3/2+i/2,3/2−i/2
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