alinateow
alinateow alinateow
  • 02-03-2020
  • Mathematics
contestada

Hi:) I need help with 1(a) , thank you so much :)))!

Hi I need help with 1a thank you so much class=

Respuesta :

oladipupog80
oladipupog80 oladipupog80
  • 02-03-2020

Answer:

-3>_ x >_ -2

Step-by-step explanation:

x(x+5)>_  -6

Open the bracket

x² + 5x >_  -6

x² +5x + 6 >_  0

Solve quadratically using factorisation method

Factors of 6 that sum up to +5. ( 2 and 3)

x² + 2x + 3x + 6 >_  0

Factorise

x(x + 2) +3(x + 2) >_ 0

(x+2)(x+3) >_ 0

Therefore

x + 2 >_ 0    or  x +3 >_ 0

x>_ -2   or x >_ -3

-3>_ x >_ -2

I hope this was helpful, please mark as brainliest

Answer Link

Otras preguntas

A solution of hydrogen peroxide, H2O2, is titrated with potassium permanganate, KMnO4, according to the following equation: 5H2O2 + 2KMnO4 + 3H2SO4 = 5O2 + 2MnS
I figured out the 1st question but I do not understand the second one...please show me step by step! Thank you!
A tree casts a shadow 27 m long. At the same time, the shadow cast by a 66-cm tall statue is 56 cm long. Find the height of the tree to the nearest tenth of a
What's the other word stubborn; inflexible
What's the other word stubborn; inflexible
Your friend is asked to differentiate between evaporation and boiling.what questions could you ask to make him to know the difference between evaporation and bo
What is the answer to 12-2x6+2/2
which designer started as a fashion illustrator before focusing on industrial design?
write in decimal form fourteen and eighty-Four hundredths
write in decimal form fourteen and eighty-Four hundredths