Question

3. Find the value of a so that (x + 6) is a factor of the polynomial (x3 + 5x2 - 4x + a).
(ii) For what value of a is the polynomial (2x3 + ax2 + 11x + a + 3) exactly divisible by
(2x - 1)?
chaptet-Remainder Theorom & Factor Thoorom
fast!!!
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Answer 1

Answer:

Answer: a = -7

Solution:

from polynomial 2x-1

put the value of x,in cubic polynomial,and solve for a.

if given polynomial is exactly divisible by 2x-1, than on putting x = 1/2, it becomes zero.

The value of a = -7.

Hope it helps you.