thea81 thea81
  • 01-12-2018
  • Mathematics
contestada

Help me factorise (2x-1)^2-(3x+6)^2 . Please explain your answer too, thank you xx

Respuesta :

jimrgrant1 jimrgrant1
  • 01-12-2018

Answer:

- 5(x + 1)(x + 7)

Step-by-step explanation:

Expand the given factors in the expression

= 4x² - 4x + 1 - (9x² + 36x + 36 )

= 4x² - 4x + 1 - 9x² - 36x - 36 ( collect like terms )

= - 5x² - 40x - 35 ( factor out - 5 from each term )

= - 5(x² + 8x + 7) ( factor the quadratic )

= - 5(x + 1)(x + 7)


Answer Link

Otras preguntas

please help me im very behind​
Describe the following influences on our food choices and provide an example of each one. Your cultural background Product packaging Product pricing
Find the x and y intercept of -x-4y=16.
Which value could go in the blank cell so that the percentage of only children that have no pets is 37.5%? A. 63 B. 82 C. 175 D. 205
Help me do this! Pleaseeeeeeeeeeee
which of these is a characteristic of index fossils
PLEASE HELP!!!!!!!!!!!!!!!!!!!
What mountain ranges did the Corps of Discovery travel over?
In 2018, researchers examined a random sample of 1455 "disadvantaged" Australian school children (children aged 6 – 15 from rural and outer suburban areas) and
At a high school baseball game, adult tickets sold for $9 and student tickets sold for $6.50 per ticket. If the total sales were $1,570 and 185 tickets were sol