Complete the square for a circle. for #42.

we are given

we can see that

each terms are multiple of 2

so, we can factor out 2

we can divide both sides by 2

we can rearrange it

now, we can move 10 on right side

now, we can add both sides 7^2 and 5^2

we can simplify it

we can also write as

..............Answer

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

25.2

step-by-step explanation:

2+4x6-8/10= 25.2