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

Water moves from Earth’s surface to the atmosphere as precipitation.

What is the exact circumference of a circle with a radius of 17 millimeters? A. 17π millimeters B. 34π millimeters C. 68π millimeters D. 8.5π millimeters

what x what gives me 49 but when you add it it gives me 14

Possums ___ death in order to deceive predators in search of live prey. a. circumspect b. excavate c. feign d. orbit

3/4 divided by 2/3 equals

a right triangle has an area 18 square inches. A: if the triangle is an isosceles triangle, what are the lengths of the legs of the triangle

Faye paid $16.00 for a pair of shorts that were 20% off. What was the original price?

The anthropologist that conducted a now-classic study of cultural variation in the 1930s was a. Horace Miner. c. Margaret Mead. b. Napoleon Chagnon. d. Geor

how do you write 3 1/10 as a decimal

how do you write .006 in word form