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

Complete this sentence, using two different forms of the same verb. When the writer began to keep tree frogs, he the large and placid White's; now he is more e

The following graph illustrates a market where the government has implemented a tax resulting in the new supply curve (STax ). Answer the following questions ab

What is the surface area? 25 ft 20 ft 25 ft 30 ft 28 ft )) square feet Submit

If the rectangle below is enlarged using a scale factor of 2, what will be the perimeter and area of the new rectangle?

a theme in a story about a peedlar man

A force can make an object change direction, SLOW DOWN or SPEED UP Copy the sentence, changing the words in italic to the correct scientific terms

please help me find the slope of the line graphed below ! (will mark brainliest) and spammers will be reported.

According to the following chemical reaction SiO2(s) + 3C(s) + 3 SIC(s) + 2C0(g) if 3 mol of SiO2 are added to 4 mol of C How many moles of excess reactant rem

Pls pls pls pls pls pls pls

40 pointer, its over complicated.