Question

Y = x^2 +7x - 5 can be written in the form y = (x + a)^2 + b.
Find the value of (a) and (b)

Answer 1

Explanation:

Y = x^2 +7x - 5

x + 2* 7/2 * x + (7/2)^2 - (7/2)^2 - 5

(x + 7/2)^2 - (7/2)^2 - 5

(x + 7/2)^2 - 69/4

here, a = 7/2

b = -69/4