The fraction `(x-2)/(x^(2)+4x-21)` is not defined when x=

Resolve into partial fractions (5x-4)/((x^(2)-x-2)

The function f(x) is defined by f(x)={log_[4x-3](x^2-2x+5) if 3/4 1 4 when x=1}

The function f(x) is defined by f(x)={log_(4x-3)(x^(2)-2x+5) if 3/41, ,4 when x=1}

Divide :(x^(2)+4x-21)by(x-3)

If f(x)={(x-2)/(x^(2)-3x+2), when x!=21 when x=2, prove that f'(2)=-1

The function f:R rarr R ,defined as f(x)=(x^(2)-x-21)(x^(2)-x-39) .Which of the following is (are) correct?

If f(x) = x^(2) - 2x - 3 then find f(A) when A = [(1,2),(2,1)]

Factorize x^2-4x-21 .

(1)/(sqrt(21+4x-x^(2)))

Divide x^(2)-4x-21 by x-7