if( x+1/2) is a factor of the polynomial 8x3-ax2-x+2
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1
i hope that is right
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rithikebr:
the write answer is 7/4
really??
yes
how??
is it 8x to the power of 3
yes
than it is correct 7/ 4
substitute the value of -1/2 in the place where it is x and equalize it with 0 than a = 7/4
ok
i will try
Answered by
8
let p(x)=8x^3+ax^2-x+2
since x+1/2 is a factor p(x)
hence p(-1/2)=0
= -1 -a/4+1/2+2=0
=-a/4+1/2+1=0
= a/4=3/2
a=6
hope it help u
since x+1/2 is a factor p(x)
hence p(-1/2)=0
= -1 -a/4+1/2+2=0
=-a/4+1/2+1=0
= a/4=3/2
a=6
hope it help u
glt bnaye ho
what
I can't understand what u said
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