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

how many atoms in C9H8O4

A cross-country automobile rally is 1,025 kilometers long. At a stopping place the letter had traveled 867 kilometers. How far away was finish line

Solve proportions 13/25 = p/100

How to solve mufti step equations 6a+5a=-11

What is 258/300 written as a decimal and a percent???

How do I change 36 to 360

What features of colonial politics in 18th century America contributed to the development of popular democracy, and what kept political life from being more tru

I'm inside the path I'm a difference of two numbers outside the paths what number am I

Stan works on an assembly line. What effective and appropriate approach would he be wise to use when coping with minor frustrations like hang-ups on a conveyor

The following are four largest country's in the world Russia Canada China united states what country located in south america also ranks as one of the ten large