1.
1. Find the value of the polynomial 5x - 4r +3 at
(i) x=0
(m) x=-1
(m 1) x=2
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Answer:
(i) 5(0)-4r+3
=0-4r+3
=-4r-3=0(factor theorem)
=4r=0-3
=r=-3/4
(ii)5(1)-4r+3
=5-4r+3
=8-4r=0
=4r=0-8
=r=-8/4=2
(iii)5(2)-4r+3
=10-4r+3
=13-4r=0
=4r=-13
=r=-13/4
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