find the value of a so 1-7x is a factor of -14x^3-47x^2-14x+a
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Step-by-step explanation:
1-7x
x =1/7
f(x)=-14x^3-47x^2-14x+a
f(1/7)=(-14*1/7*1/7*1/7) - (47*1/7*1/7) - (14*1/7)+a = 0
->(-2/49)-(47/49)-2+a=0
->(-2-47-98+49a)/49 =0
->(-147+49a) =0
->49a = 147
-> a = 147/49
-> a = 3
therefore the value of a is 3
hope this would help.
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