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

What is a cross poems
how do i turn 1 and 1 fith in a decimal​
(15 points!) AG= ED=
What must occur for transcription to occur
Two sporting goods stores are having discount sales on basketballs at one store a basketball is on sale for 25% off the regular price of 24.95 at the other stor
Which lines in this excerpt from act I of Shakespeare's Romeo and Juliet suggest that Lord Capulet respects free will? CAPULET: And too soon marr'd are those s
With the Linux operating system, it’s open source design means it can be used, modified and _____ freely. ( its a full in the blank)
A student has an 80 g sample of a radioactive material that has a half-life of 20 seconds. How much material will he have left after one minute? a) 40 g b) 1.3
Solve for x please and quick please
Andrew will use the _____ picture option to add a new image. ??