asaadfatma asaadfatma

04-02-2017
Mathematics

contestada

4x²-17x-42 by factor

Respuesta :

surjithayer surjithayer

10-02-2017

4x²-17x-42
=4(x²-17/4x)-42
=4[x²-17/4 x+(-17/8)²-(-17/8)²]-42
=4(x-17/8)²-289/64-42
=4(x-17/8)²-(289+2688)/64
=4(x-17/8)²-2974/64
=[(2x-34/8)²-(√2974/8)²]
=(2x-34/8 +(√2974/8))(2x-34/8-(√2974/8)
=[2x+(√2974-34)/8][2x-(√2974+34)/8]

Answer Link

Otras preguntas

What do free ribosomes do? A. raise alarms when the cell is under attack B. float around the cell looking around then report back to the nucleus C. attach to mR

Question 7 of 10 Many modern adaptations of Romeo and Juliet have been produced, including West Side Story in 1961, which is set in New York. What does that fil

Durung the age of discovery, which country controlled the western lands of north and south america?

I just need to fill the table out

If a peregrine falcon dove at its maximum speed for half a mile to catch prey, how many seconds would the dive take? (round your answer to the nearest second. )

An angle measures 66° more than the measure of its supplementary angle. What is the measure of each angle? A= B=

don't bother to ....... for me ( waiting , wait)

Find the value of log 1 2 462 to four decimal places. –8.8517 –0.1130 0.1130 8.8517

Savings accounts typically offer more interest than what type of account?

From the observation deck of a skyscraper, Jack measures a 67 angle of depression to a ship in the harbor below. If the observation deck is 903 feet high, what