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
VER TODAS LAS RESPUESTAS ( 15+ )
Otras preguntas
Which shows the list of numbers in order from least to greatest? 1-31, ), 121, 13.51,-1
A small boat coasts at constant speed under a bridge. A heavy sack of sand is dropped from the bridge onto the boat. The speed of the boat a. does not change.
155.4 grams of carbon tetrachloride to atoms
Henry is concerned about his risk of osteoporosis. Which of the following characteristics is a modifiable risk factor for this chronic condition? a. family hist
Which region did the United States obtain from Great Britain? California Oregon Country Texas
Why are media potentially so effective? A. Their quality is controlled by the government. B. Media are all around us. C. They don't cost anything to use. D. All
Disney held a breakfast for parents and their children to eat with Mickey mouse. adult tickets cost $17.95 and children's tickets cost $12.95. Disney made $7355
How much can 7 go to 57
Need help on question 2 and 3
A U.S. investor purchased a C$100,000 Canadian dollar CD 6 months ago at an APR of 7 percent. The Canadian spot rate was 1.367 C$/U.S.$ when the investment was
