jacobhimelfarb7
jacobhimelfarb7 jacobhimelfarb7
  • 16-01-2021
  • Mathematics
contestada

prove that for any value of x the expression (x-3)(x+7)-(x+5)(x-1) is negative

Relax

Respuesta :

senaytech0922
senaytech0922 senaytech0922
  • 16-01-2021

Answer:

you can prove it by making the first 2 expression less than the last 2 expressions

Step-by-step explanation:

(x-3)(x+7)-(x+5)(x-1)

(x-3)(x+7) < (x+5)(x-1)

x^2 +4x-21 < x^2 +4x-5

  • cancel out some terms

then it become -21<-5 which is true

Answer Link

Otras preguntas

Create a 12 line poem that begins with the line "Papa was on the porch".
How many ways can a cook arrange 7 of her 10 spice jars on a spice rack?
Find the price per unit for each item, then choose the best buy. a. Cereal, 10 oz. box for $5.90 would b. Cereal, 24 oz. box for $ 6.48 would The best buy would
How did the railroad expansion make neutral resources more available in the US?
what is the historical relationship between the Temperance Movement and Prohibition
The walls of the small intestine are folded by what?
Can someone explain to me The Supreme Ordeal
What is the process that allows computers to create, display, and store maps electronically?
What month is the most dangerous for tornadoes in the united states?
Explain the benefits of the Nazi-Soviet Pact for both the Germans and the Soviets.