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

Suppose a triangle has two sides of length 14 and 14, and that the angle between these two sides is 122 degrees. What is the length of the third side of the tri

True or false? paley's argument, if cogent, proves that the designer of the world was a single being.

what is the value of the expression |-5x+12| when x=5

given the figure below is a special type of trapezoid and WX II YZ, which angle pairs can be proven supplementary by the given information? select all that appl

read the excerpt from the namesake.which line from this excerpt reflects the central idea that immigrants sometimes face discrimination and prejudice in their n

what is 3.14 times 666

What minimum strength of magnetic field is required to balance the gravitational force on a proton moving at speed 7 ✕ 106 m/s?

how many moons does Saturn have

What are the magnitude and direction of the acceleration of an electron at a point where the electric field has magnitude 6100 n/c and is directed due north?

what is the square root of 9 exponent of 2 squared