If x+1 is a factor of 2x³-ax²+5+3x, then find A
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Answer:
X=–1
2X³–aX² + 3X +5= 0
2(–1)³ –a(–1)² + 3(–1) +5 =0
–2 + a –3 +5 =0
a = 0
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