baconlover240
baconlover240 baconlover240
  • 02-08-2019
  • Mathematics
contestada

Help! Which step is incorrect!

Help Which step is incorrect class=

Respuesta :

gmany
gmany gmany
  • 02-08-2019

Answer:

(2)

Step-by-step explanation:

Because

[tex]x^2-16=x^2-4^2=(x-4)(x+4)[/tex]  not  [tex]=(x-4)(x-4)[/tex]

This follows from the formula [tex]a^2-b^2=(a-b)(a+b)[/tex]

Answer Link

Otras preguntas

The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball
a bottle contains 12 red marbles and 8 blue marbles. A marble is chosen at random and not replaced. Then a second marble is chosen at random. Determine the prob
what types of units are used to describe area?
If the circumference of a baseball is 24 cm what is the volume of the object
Give all solutions if the nonlinear system of equations, including those with no real complex components. y=x^2+6x 4x-y=-24
Which of the following is a requirement for membership in either the Democratic or Republican Party? A. pass a test on the party philosophy B. pay a cert
The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball
If a = b + 2, then (b - a)⁴ = ?
What is the value of x? A right triangle with a short leg measuring 5, a long leg measuring 5, and the hypotenuse as x.A. 10 B. 5C. [tex] 2\sqrt5 [/tex]D. [tex
what types of units are used to describe area?