Question

find the remaineder if x² +4x+9 isdivide by x-3​

Answer 1

Answer:

If x + 3 = 0, then x = -3

Using the remainder theorem, if f(x) = x^2 + 4x + 5, and g(x) = x + 3 (a linear function),

then g(-3) = 0 => the remainder of f(x)/g(x)

= f(-3) = (-3)^2 + 4(-3) + 5 = 9 - 12 + 5 = 2