When 5 is subtracted from the square of a number, the result is 4 times the number. Find the negative solution. PLEASE HELP FAST!! LIKE ASAP LOL

x = -1

Step-by-step explanation:

First, we can translate this statement to the equation

Subtracting 4x from both sides gives us a quadratic equation:

From here, we can factor the expression on the right to give us the equation's two solutions. The factored form will look like

We need a + b = -4 and ab = -5, and picking a = 1 and b = -5 do the job there. Our expression factors then to (x + 1)(x - 5), giving us the equation

And the solutions x = -1 and x = 5. Since we're only looking for the negative solution, x = -1 is the one we want.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0