Question

Solve the equation by completing the square: x2 - 8x + 15 = 0
Choose one answer.
a. x =-3 or x = 5
b. x =3 or x = -5
c. x = + 5
d. x =3 or x =5

Answer 1

\[x^{2}-(a+b)x+(a*b)\]

8 = a+b
15 = a*b

What are the factors of 15?

Answer 2

3 and 5 rite?

Answer 3

Yep

Answer 4

thats my answer?