Question

The polynomial 2xcube-kxsquare + 7x-1 when divided by x-1 leaves the remainder 3 . Then find the value of k

Answer 1

Answer:

zero are

x-1 = 0

x = 1

s0, 2x³-kx²+7x-1 = 3

==> 2(1)³-k(1)²+7(1)-1 = 3

==> 2-k+7-1 = 3

==> 9-k = 3

==> -k = -9/3

==> k = 3