Estimate428,731 - 175,842give me the estimate..

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Which expression is factored form? x^2+14x+48 a) (x-8)(x-6) b) (x+6)(x-8) c) (x+8)(x-6) d) (x+6)(x+8)

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.