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Adeline Harris
Mathematics
3 November, 10:40
If x ─1 is a factor of 2x³+x² ─ 4x + m, find m
+1
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Giana
3 November, 11:01
0
Since x-1 is a factor than
(X-1) • (someting) = 2x^3 + x^2 - 4x+m=0
X-1=0 so x=1
Substitute in the equation
2•1+1-4+m=0
-3+m=0
m=3
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