Find if(-2x-5) is a factor of the polynomial p(x)=3x⁴ +5x³-2x²-4 or not.
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Step-by-step explanation:p(x)=3x^4+5x^3-2x^2-4
g(x)=-2x-5
g(x)=o
-2x-5=0
x=-5/2
p(5/2)=3(5/2)^4+5(5/2)^3-2(5/2)^2-4
=3*625/16+5*125/8-25/2-4
=117.1+78.1-12.5-4
=178.7
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