juanitob juanitob

05-04-2017
Mathematics

contestada

Factor 2x 4 - 20x 2 - 78.
A) 2(x2 - 3)(x2 - 13)
B). 2(x2 + 3)(x2 - 13)
C). 2(x2 - 3)(x2 + 13)

Respuesta :

05-04-2017

2(x^4 - 10x^2 - 39)
2(x^2 - 13)(x^2 + 3)

Letter B

Answer Link

KitKat69 KitKat69

05-04-2017

Divide everything by 2: 2(x4-10x2-39). Now factor: 2(x2+3)(x2-13) or B. We know it's not A because the last variable is negative so the signs must be different. :)

Answer Link

Otras preguntas

Because of this, asthma, makes both the ___ and ___ systems work having to deliver oxygen to the cells throughout the body

Name two successful programs of the kennedy administration

What is the answer, friends?

y + 3=2/3(x + 6) in standard form.

If there is 200 people going to a concert and each car will seat 8 how many cars do you need?

The area of the brain that controls basic functions critical to life, such as heart rate, breathing, and sleeping.

President reagan appointed sandra day o’connor as the first female _____.

Which drug can start young people on a path to use other illegal drugs?

Adam's three sisters eat an average of 3 pieces of pizza every time they have pizza for dinner. Last night, one sister ate 2 pieces of pizza. Another sister ate

In the image above, the girl is using her arm to lift a weight. Her arm is acting as a _______.