Question

Which is the correct value of c for x^2-14x+c=(x-7)^2

Answer 1

c = 3.5 - x

Step-by-step explanati

x^2 - 14x + c = (x - 7)^2

x^2 - 14x + c = x^2 - 7^2

x^2 - 14x + c - x^2 = x^2 - 49 - x^2

-14x + c = 49

-14x / -14 + c = 49 / -14

x + c = 3.5

x - x + c = 3.5 - x

c = 3.5 - x