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

A(n) _____ chart is drawn on the same worksheet as the data.

If your clothing catches fire, you should. a. stop, drop, and roll. b. run outside. c. stay low and run to escape flames.

Which description of Henry David Thoreau is accurate? A. the author of many poems about the Founding Fathers that became patriotic songs B. the author o

if you triple 4 and subtract to each day how many days until you have zero

If your clothing catches fire, you should. a. stop, drop, and roll. b. run outside. c. stay low and run to escape flames.

hormones released during executive that can cause a person to get a "physical high" are konwn as

The mediastinum is located within the the cavity

WHAT IS THE BOLD PRONOUN; Marcus asked Natalie to bring us the box of supplies.

The largest mass extinction event in the history of the Earth occurred at the end of the _______ period. A. Ordovician B. Devonian C. Permian

William bradford was the first governor of the massachusetts bay colony. true false