Answer:
Assume you meant: 
Answer is 3
Step-by-step explanation:
Replace x with 0:
zero squared is zero



Answer:
x=8,−2
Step-by-step explanation:
First, you move all the terms to one side
x^2−6x+9−25=0
Then you simplify
x^2 −6x−16=0
Factor
(x−8)(x+2)=0
Which will result in x=8,−2
Answer:
The answers are 40 : 1 and 16 : 5
Step-by-step explanation:
3. ) 400 : 10
Cancel out two of the zeros to get-
40 : 1
6. ) 1600m : 5km
1 km = 100 m, Therefore-
1600 : 500
Cancel out the zeros to get-
16 : 5
The correct answer is c45 degrees because 75-30=45