Question

How come that the answer in this question became
x=6 and x= -4 ?? Plss. Answer me

f(x)= x^2 + 3x + 4 , g(x)= 5x + 28

x^2+3x+4=5x+28
x^2-2x-24=0
(x-6)(x+4)=0
x=6, x=-4

Pls. Answer me :DDD

Answer 1

f(x)=g(x) will give you first equality

Answer 2

next - the solution of it...
what else to explain?

Answer 3

because x-6=0 yields x=6
and x+4=0 yields x=-4
after you factor set each factor equal to 0 and solve

Answer 4

If you place those 6 or -4 in for x at any point in your equation both side should equal zero provided you did it correctly

Answer 5

Thanks :))))))))