radejabarron radejabarron

03-05-2020
Mathematics

contestada

The product of a number and 8 less than the number is –15. Find the number. and plz explain

Respuesta :

mysticchacha mysticchacha

05-05-2020

Answer:

It can be 5 or 3

Step-by-step explanation:

let x = that number

x * (x - 8) = -15

xx - 8x + 15 = 0

xx - 3x - 5x + 15 = 0

x(x - 3) - 5(x - 3) = 0

(x - 5)(x - 3) = 0

then x = 5 or x = 3

Answer Link

Otras preguntas

Exit complete the sentence with an appropriate idiom. i've been studying this secret message for hours but i can't seem to break the code. what it really needs

simplify (5x + 8) - (-4 × -2)

Who is Eric Drexler and how did he influence nanotechnology? (Dot points please)

What is the result of adding -2.9a + 6.8 and 4.4a - 7.3 ?

3. Which of the following processes transfers heat?

Passing through (-1,2) and (1,6). Give the answer in slope-intercept form.

How do the authors of “A Psalm of Life” and "Auspex" use different images to illustrate their themes?

By using first-person narrative and including many details, which critical goal does Douglass achieve in his autobiography?

Identify the solution of each equation from the list given. 1. h + 9 = 21; 10, 11, 12 2. 34 + p = 52; 18, 19, 20 3. 45 – k = 27; 17, 18, 19 4. y – 13 = 24

What is the most common cause of hypersecretion by endocrine organs?