Lindsay882 Lindsay882

03-04-2018
Mathematics

contestada

Show all work. What are the zeros of the function?
f(x) = 2x^2 − 8x − 10

Respuesta :

03-04-2018

(2x² - 8x - 10) ÷ 2 = 0
x² - 4x - 5 = 0
x² + x - 5x - 5 = 0
x(x+1) - 5(x+1) = 0
(x+1)(x-5) = 0
x+1 = 0 or x-5 = 0
x = -1 or x= 5

S = {-1;5}

Answer Link

Otras preguntas

can humans cause a imbalance in the food chain

How do you put 0.8918 as a fraction

The atomic number of an atom identifies the number of protons in its nucleus. If the overall charge on the atom is neutral, what must the atomic number also ide

What Percent Of 700 Is 385

the ratio of boys to girls at the movie is 4:7. If there are 21 girls, how many boys are at the movie?

Solve each compound Inequality. 42. -2 ≤ d + 1/2 < 4 1/2 44. 2t ≤ -4 or 7t ≥ 49 46. -1 ≤ a - 3 ≤ 2 48. A town's high temperature for a given month is 88 degr

What is party-as-organization?

Simplify (7-8i)+(-12-4i)

Jane likes to sunbathe She has read about risks from sunbathing and how to reduce them. She thinks she is not at risk from sunbathing because she has dark skin.

Here is a sequence of shapes made from squares and circles. The sequence continues in the same way. The formula for the number of circles (c) in shape number (n