pls tell me how to find a in this
solve on a page
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if that polynomial is exactly divisible by (2x-1)
then
(2x-1) = 0 and x = 1/2
now 2x^3+ax^2+7x - 6 = 0
put the value of x in this equation
value of a = 9
then
(2x-1) = 0 and x = 1/2
now 2x^3+ax^2+7x - 6 = 0
put the value of x in this equation
value of a = 9
Answered by
0
f(x)=2x³+ax²+7x-6. is ÷ by (2x-1)
=>x=1/2
f(1/2)=0
2(1/2)³+a(1/2)²+7(1/2)-6=0
2/8+9/4+7/2-6=0
4+a4+56-96=0
a=96-60
a=36
=>x=1/2
f(1/2)=0
2(1/2)³+a(1/2)²+7(1/2)-6=0
2/8+9/4+7/2-6=0
4+a4+56-96=0
a=96-60
a=36
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