To solve first move the 98 to the other side by subtracting it from both sides. Then divide by - 1 on both sides to that the x^2 is no longer a negative. You are left with:

Now square root both sides to get

The two factors that make up 98 are 49 and 2. 49 can be square rooted. So we are left with these answers:

and
Just simpfly the promblem
Step-by-step explanation:
x-25= 6x-5
-5x = 20
x=-4
The probability is .919
I used normCdf(1.48,15.56,8,4).
Or
normCdf(-1.63,1.89,0,1) if you standardize your numbers