Answer:
6(8-5)
Step-by-step explanation:
-6 + 5
= -1.
Regards............
Answer: ![20x^2 + 47x+24](https://tex.z-dn.net/?f=20x%5E2%20%2B%2047x%2B24)
Step-by-step explanation:
We just multiply the values on the edges like we are finding the area of a square, L * L = area.
4x * 5x = 20x^2
4x * 8 = 32x
3 * 8 = 24
3 * 5x = 15x
Next add the answers together
20x^2 + 47x + 24
Hello,
I suppose you mean -1! else f(x)=f^1(x)
y=x²-81
-> x=y²-81 (exchahge x and y)
->y²=x+81 (solve for y)
![y= \sqrt{x+81} \ or \ y=- \sqrt{x+81}](https://tex.z-dn.net/?f=y%3D%20%5Csqrt%7Bx%2B81%7D%20%5C%20or%20%5C%20%20y%3D-%20%5Csqrt%7Bx%2B81%7D%20)
It is because (f^-1)(x) is not a function!
with x>=-81