The roots of the function f(x) = 5x³ + 5x² - 170x + 280 are given by x = 4, x = 2 or x = -7
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given that x + 7 is the root of 5x³ + 5x² - 170x + 280, hence:
(5x³ + 5x² - 170x + 280) / (x + 7) = 5x² - 30x - 40
Hence:
(5x³ + 5x² - 170x + 280) = (x + 7)(5x² - 30x - 40)
= 5(x² - 6x - 8)(x + 7)
= 5(x - 4)(x - 2)(x + 7)
The roots are at:
0 = 5(x - 4)(x - 2)(x + 7)
x = 4, x = 2 or x = -7
The roots of 5x³ + 5x² - 170x + 280 are x = 4, x = 2 or x = -7
Find out more on equation at: brainly.com/question/1214333
14)
2(-3)² => 2(-3)(-3) => 2*9 = > 18
27+18-11 => 27 + 7 = > 34.
16)
17)
Smallest to largest
KJ, JL, LK
answer is B. second one
The longest side<span> of a triangle is </span>opposite<span> the </span>largest<span> interior </span>angle
and the shortest side<span> is </span>opposite<span> the smallest </span><span>angle</span>
Answer:
around 9
Step-by-step explanation:
Answer:
no,
Step-by-step explanation:
it must be a full negative or positive whole number.
no fractions or decimals can be in an integer.
