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Step-by-step explanation:
g(x) = x + 1/2 = 0
=> x = (-1/2)
p(x) = 2x^3 + 3x^2 - 11x - 3
= 2(-1/2)^3 + 3(-1/2)^2 -11(-1/2) - 3
= 2(-1/8) + 3(1/4) + 11/2 - 3
= (-1/4) + 3/4 + 22/4 - 12/4
= (-12-1+3+22)/4
= (-13 + 25)/4
= 12/4
= 3
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