find the value of p for which the polynomial x3+4x2-px+8 is exactly divisible by x-2 hence factorise they polynomial
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my answer for p = 14 i have solved this answer by taking 4 multiplied by something
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x= 2
2³+4×2×2- 2p+8=0
= 8+16+8-2p=0
= 32-2p=0
= -2p= -32
= p=-32/-2
p =16
2³+4×2×2- 2p+8=0
= 8+16+8-2p=0
= 32-2p=0
= -2p= -32
= p=-32/-2
p =16
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