Equations

Question 1

b^4-13b^2= -36

Solve for b:

Answer 1

(b^2-4)(b^2-9)=0

B+2)(b-2)(b+3)(b-3

Question 2

If n^2 + an + b = (n+c) (n+d) for all values of n, what must be true?

Answer 2

a= c+ d
b= c x d