Answer :
Step-by-step explanation:
according to factor theroem,
if x-a is a factor then then f (a)=0
lets try putting x value in equtaion it must come 0 x=5
(-3×5)^4+(15×5)-5+5
=472500
we dont get here answer 0 so it is not factor of it
Step-by-step explanation:
according to factor theroem,
if x-a is a factor then then f (a)=0
lets try putting x value in equtaion it must come 0 x=5
(-3×5)^4+(15×5)-5+5
=472500
we dont get here answer 0 so it is not factor of it