One of the roots of 2x^3-9x^2+13x+k=0 is x=2.Find the other 2 roots. Explain how you got the answer.
One of the roots of 2x^3-9x^2+13x+k=0 is x1=2.Find the other 2 roots. Explain how you got the answer.
Hello whatdoiputhere!
(2x3−9x2+13x+k) :(x−2)= 2x2−5x+3
2x3−4x2_
−5x2+13x
−5x2+10x_
3x+k
3x−6_
0
k=−6
2x2−5x+3=0x2−2.5x+1.5=0x=1.25±√1.252−1.5x=1.25±0.25
x∈{1,1.5,2}
!