Question

When x^2 + bx + 2 is divided by
X + 3, the remainder is 5. find the value of b

Answer 1

b = 2

Explanation:

Let f(x) = x² + bx + 2,

`f( - 3) = 5 \\ {( - 3)}^(2) - 3b + 2 = 5 \\ 11 - 3b = 5 \\ 3b = 6 \\ b = 2`