Question

find an upper limit for the zeros of 2x4 - 7x3 + 4x2 + 7x - 6 = 0

Answer 1

@satellite73 sorry i keep bothering you, but can u help?

Answer 2

AN upper bound right?

Answer 3

pick some number \(k\) and divide by \(x-k\)
synthetic is best
if all the coefficients are positive, then \(k\) is an upper bound of the zeros

Answer 4

this problem is actually much easier than that, because by inspection \(1\) is a zero, as is \(-1\) so you can factor out \((x-1)(x+1)\) and find the other zeros using the quadratic formula or even factoring if you can