1.What must be subtracted from p(x)=8x^4+14x^3-2x^2+8x-12 so that 4x^2+3x-2 is a factor of p(x).
2. If alpha and beta are the zeroes of polynomial 2x^2-4x+5 .Find the value of alpha^2 + beta^2.
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hey dude ...
just I can give u hint fr..solving it....!!
1). look at frst we hv given the p(x).so just divide the p(x) by g(x)= 4x²+3x-2
by log division method......!
the quotient u will got after dividing it will be subtracted frm p(x) will give g(x).
.....
2). sory this one I don't know....
thanks.....!
just I can give u hint fr..solving it....!!
1). look at frst we hv given the p(x).so just divide the p(x) by g(x)= 4x²+3x-2
by log division method......!
the quotient u will got after dividing it will be subtracted frm p(x) will give g(x).
.....
2). sory this one I don't know....
thanks.....!
priya5252:
please
ok !ook ...!
here is given polynomial 2x²-4x+5...so given zeroes are....alpha and beta.
we know that alpha + beta = -b/a
so , -b/a =4/2 =2
alpha + beta = 2. ...... ..... ... taking sq on botyh side
(alpha +beta )² = 4 ......::: alpha²+beta²+alpha*beta = 4
we know that alpha * beta = c/a= 5 /2.
so, alpha²+beta²= 4 - 5/2..
alpha² + beta² = 3/2.
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