What is the inverse of f(x)=(x-4)(x+1) ?

The inverse of f(x)=(x-4)(x+1) is (3+sqrt(4x+25))/2 ,(3-sqrt(4x+25))/2

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inverse of f(x)=(x-4)(x+1)

inverse

f (x) = (x - 4) (x + 1)

\frac{3 + 4 x + 25}{2}, \frac{3 - 4 x + 25}{2}

Solution steps

y = (x - 4) (x + 1)

Replace

x

with

y

x = (y - 4) (y + 1)

Solve for

y, x = (y - 4) (y + 1)

\frac{3 + 4 x + 25}{2}, \frac{3 - 4 x + 25}{2}

f (x) = arcsin (x + 3)

\frac{x cos ( a + x )}{sin ( a + x ) - sin ( a )}

- 2 x^{2} + 2 x

f (x) = - 5 x + 1

f (x) = - \frac{3}{2} x + 3

What is the inverse of f(x)=(x-4)(x+1) ?
The inverse of f(x)=(x-4)(x+1) is (3+sqrt(4x+25))/2 ,(3-sqrt(4x+25))/2