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

What is electrophoresis? A. a technique that separates amino acids on the basis of their polarity B. a technique that separates amino acids on the basis of thei

The answer is x=10 but I don’t know how to solve it

Cortisol is a steroid hormone that can pass through the plasma membrane. Complete the flowchart describing the interaction of cortisol with intracellular recept

True or False. Water moves both ways across a Membrane.

What evidence in this photo indicates that protestors are participating in a boycott?

Sentance using utterance use synonym in sentance

When did Rome think it was important/necessary to have an emperor?

solve the equation 35,000 - 12.5x = 0

Consider a profit-maximizing monopoly pricing under the following conditions. The profit-maximizing price charged for goods produced is $12.The intersection of

What is the value of x?