To factorise it start with putting the xs in brackets.
(x )(x )
Then you must find 2 numbers which multiply to +81 and sum to -18.
81 is the product of 9×9 or -9×-9.
9+9=+18
-9+-9=-18
So they two numbers must be -9.
So factorised it is (x-9)(x-9) or (x-9)^2
closed interval on x=3 and open at x=5
for all values between these numbers, y=3
so [3,5)
The answer is: 4.1, 4.085, 4.01, 4.009
Answer:
x = 5
Step-by-step explanation:
x = 8 - 3
Thus, x = 5
