5.3×10^5=53×10^4
53×10^4+3.8×10^4
=56.8×10^4
=5.68×10^5. Hope it help!
Wih roots r1 and r2
the factors are (x-r1)(x-r2)
roots 4 and -8
(x-4)(x-(-8))
(x-4)(x+8)
x^2+4x-32 is the equation
either (x-4)(x+8) or x^2+4x-32
Combine like terms.
8c^2 + 10b - 8bc + 8
Hope this helps!
I believe the correct answer is .03