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

Simplify this expression. -3[2-(y-5)]-4[3(y+1)-(6-y)(-2)]

Use the net to find the surface area of the prism.

The final step that will prove the length of hypotenuse c, squared that of each leg

Evaluate. log35 = _____ a:0.68 b:1.46 c:0.60

Define maw A. A tomb B. An animal throat or mouth C. An animal paw

When listing the levels of organization in organisms from smallest to most complex, which level is just below organs in complexity?cellorganismorgan systemtissu

Take a factor out of the square root: √x^3

What are ways to choose a number between 10 and 100

If you want to wrap text so that it fits a particular cell size, which formatting section would you use? A. Alignment B. Pattern C. Border D. Number

Please do it I’m desperate