HelloWorldofMath HelloWorldofMath

24-01-2022
Mathematics

contestada

one of the roots of the equation 2x^2-bx-20=0 is -2.5. find the other root

Respuesta :

mathistrash1963 mathistrash1963

25-01-2022

Answer:

Here is an actual answer.

(2x + z)(x + 2.5).

Step-by-step explanation:

In general, a quadratic equation in standard form is: ax2 + bx + c and other stuff I forget.Therefore, from 2x2 - bx -20, we obtain: (2x + z)(x + 2.5).

Answer Link

Otras preguntas

After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?

who makes the most computers

Evidence gathered from publicly observable behavior is known as _________ evidence.

how would I calculate the X from a known velocity when launching a ball off a table?

write an equation for each condition 1) The line with a slope of 7 and a y-intercept of -1( in slope-intercept form) 2) The line that passes through (1,-5) and

write an equation for each condition 1) The line with a slope of 7 and a y-intercept of -1( in slope-intercept form) 2) The line that passes through (1,-5) and

The mean of 20 numbers is 18. If 3 is added to each of the first ten numbers, find the mean of the new set of 20 numbers.

write an equation for each condition 1) The line with a slope of 7 and a y-intercept of -1( in slope-intercept form) 2) The line that passes through (1,-5) and

After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?

the famous irrational numbers