guest0905 guest0905

15-09-2020
Mathematics

contestada

please help me solve these questions. at least 2. (i)

please help me solve these questions at least 2 i class=

Respuesta :

ChoiSungHyun ChoiSungHyun

15-09-2020

Step-by-step explanation:

x^2 + 4x + 8 = (x^2 + 4x + 4) + 4 = (x + 2)^2 + 4.

When x^2 + 4x + 8 > 5, this means (x + 2)^2 + 4 > 5.

So (x + 2)^2 > 1.

=> (x + 2) > 1 or (x + 2) < -1.

=> x > -1 or x < -3.

Answer Link

Otras preguntas

How does the command economy solve the basic economical problem

Hector works in a gas station and earns $10.60 per hour. Last week he worked 20 hours. What was his gross pay

I don't quite understand what they want to know.

What is frankensteins main goal after seeing the monster for the first time upon its creation?a- he wants to tell his family about his experimentb- he wants to

Express the area of a square with sides of length 2xy^2 as a monomial.

How to punctuate It took me a while to recover but otherwise I was ok?

Portugal denied this explores request to sail to the New World

In important battle look place between june 3 1942 and june 7 1942 the battle resulted in an allied victory over japan and kept Hawaii safe

Which equation does the graph of the systems of equations solve? A) x2 − 2x − 1 = −x2 + 3 B) x2 − 2x + 3 = x2 − x + 1 C) −x2 − 2x + 2 = 2x2 − x − 2 D) −x2 − 2x

when output increase, the PPC of the economy