andrewpark892 andrewpark892

02-09-2017
Mathematics

contestada

what polynomial should be added to 4x²+5x-8 in order to equal 0?
A. 4x+5x+8
b. -4x²-5x+8
c. -4x²-5x-8
d. -4x²
e. 4x²+5x-8

Respuesta :

texaschic101 texaschic101

02-09-2017

4x^2 + 5x - 8 + (- 4x^2 - 5x + 8) = 0

all ur doing is changing the signs so they will cancel each other out.

so ur adding : -4x^2 - 5x + 8

Answer Link

Otras preguntas

A car with mass 615 kg drives through an Arby's parking lot. What is the weight of the car? Isn't it just w=mg So, w=615 kg x9.8 m/s^2 w= 6,027 N

What is the value of m in the equation 1/2m - 3\4n = 16 , when n = 8?

Which verb is in the past perfect tense? Choose that verb to correctly complete the sentence. I __________ the soccer team to meet new friends. A. was joining B

Which verb is in the present progressive form? A. will be flying B. was hopping C. am swimming D. had been driving

Solve for x and express your answer as a logarithm. 3(5^x) = 48 Simplify your answer as much as possible.

in edgar allan poe's the raven, what is the last question the speaker asks the bird

Which of the following sentences is correctly punctuated? "Get over the fact that you didn't make it on the cheerleading team," she said, "and just try to get o

a small acting club has 6 members. 3 of the members are to be chosen for a trip to see a Broadway play. how many different 3-member groups are possible

What is an emotional appeal? an appeal that addresses the reader’s feelings an appeal based on sound reasoning an appeal to authority that establishes credibili

the basic requirements for industry growth are capital natural resources true or false