callaway12x callaway12x

01-03-2017
Mathematics

contestada

What number should be added to the expression x2 + 4x to change it into a perfect square trinomial?

Respuesta :

morgaine816 morgaine816

01-03-2017

4. Then you have x^2+4x+4 which gives you (x+2)(x+2) when you factor it.

Answer Link

michelpantoja07 michelpantoja07

01-03-2017

ax^2+bx+x=0 so divide it by two
x^2+4x+4(b=4, 4/2 is 2 and 2^2 is 4 that's the number

Answer Link

Otras preguntas

Some values of the linear function ƒ are shown in the table. What is the value of ƒ(3)?

What are the different ways you can classify songs?

Two trains leave stations 546 miles apart at the same time and travel toward each other. One train travels at 95 miles per hour while the other travels at

Is it true that a plane contains at least the non-colinear points

A store is having a sale where everything is discounted and the sales price if a customer buys an item that normally sells for $365

Given the following two points find the slope. p1(-2,3)and p2(1,0)

99×101 has the same value as (99×100)+1 (99×100)-(99×1) (99×100)+(99×1) (99×100)(99×1)

I am stuck on number 6 and 7. It is a two column proof in geometry. Chapter I’m on is isosceles triangle theorems.

In this type of government, one person has control over all government branches: autocracy aristocracy democracy

Solve the system of equations using the substitution method. x=3+12y −2x−y=3 Enter your answer, as decimals, in the boxes.