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

In a well developed paragraph of 5 – 7 sentences, describe the situational irony in “The Gift of the Magi”. How is this irony critical to the story’s theme?

If 1.20 moles of an ideal gas occupy a volume of 18.2 L at a pressure of 1.80 atm, what is the temperature of the gas, in degrees Celsius? -125°C 59.5°C 273°C

How did the surplus of food affect early human civilization in the agricultural revolution ?

which progressive reform allowed the voters to approve or reject laws passed by the legislature

Select the antecedent of the pronoun in the following sentence. The strikers will return to work when the union representatives have completed their negotiation

one similarity between the declaration of the independence and the bill of right is that both

Jaime drew a square that has sides that are whole numbers of centimeters. Which could not be the area of Jaime's square? A. 25cm2 B. 36cm2 C. 50cm2 D. 64cm2

A powerboat is about to cross paths with a sailboat under sail what should the power boat do

How do you prevent unauthorized personnel from accessing your cisco device through the console port?

3. Solve z2 – 15z + 56 = 0 using the zero product property. A. z = 8, 7 B. z = –5, –2 C. z = 8, –4 D. z = –4, 7