Answer:
To find an inverse, you need to replace f(x) with y. Then switch the x and y's in your equation and solve for y. This will find f^-1(x).
Step-by-step explanation:
<em>Presuming you mean y = -2x^2 - 8x - 13</em>
Firstly, put the x terms in parentheses and factor out -2:
![y=-2(x^2+4x)-13](https://tex.z-dn.net/?f=%20y%3D-2%28x%5E2%2B4x%29-13%20)
Next, we want to make what's inside those parentheses a perfect square. To do this, divide the x coefficient by 2 and square that result. In this case, that result is 4. Add 4 to the inside of the parentheses, and add 8 to the outside of the parentheses to balance it out. (Since when foiled, 4 x -2 = -8)
![y=-2(x^2+4x+4)-13+8\\y=-2(x^2+4x+4)-5](https://tex.z-dn.net/?f=%20y%3D-2%28x%5E2%2B4x%2B4%29-13%2B8%5C%5Cy%3D-2%28x%5E2%2B4x%2B4%29-5%20)
Next, factor what's inside the parentheses, and <u>your final answer will be
</u>
Answer:
$5.49
Step-by-step explanation:
21.96 / 4
You will get you unit price after you do that
4x2 * (x2 + 5x - 3) is the final factorization
Answer:
-43/45
Step-by-step explanation: