Question

I really need some help!!!

Answer 1

^. his is right seriously

Answer 2

if ab and c are positive integrals

bx+c is a perfect square.

and it's sq. rt <7 since x=7

let x-a=6

a=1

bx+c=36

if b=2

c=22

(x-1)^2=2x+22

x^2-2x+1=2x+22

x^2-4x-21=0

(x-7)(x+3)=0

X=7 or x=-3

X=-3 is an extraneous solution

bx+c <49

since x=7 and a is a positive integer