Find the value of p for which x 3 +4x 2 -px+8 is exatly devisibleby x-2.
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x3+4x2-px+8............(i)
x3+4x2-px+8 is divisible by x-2.
so x=2
putting x=2 in equation (i)
=(2)3+4(2)2-2p+8=0
=8+16+8-2p=0
=32=2p
=p=32/2
=16
x3+4x2-px+8 is divisible by x-2.
so x=2
putting x=2 in equation (i)
=(2)3+4(2)2-2p+8=0
=8+16+8-2p=0
=32=2p
=p=32/2
=16
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