How to solve this equation by getting a value and b value

a=±5

Step-by-step explanation:

25=5^2

Given that,  x^2−10x+25=x^2−10x+5^2

Identity: a^2−2(ab)+b^2=(a-b)^2

Here, a=x and b=5

∴=(x−5)^2

Hope this helps

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.