Step-by-step explanation:
Descares Theorem says that the number of roots of a polynomial is equal to its highest exponent, and the roots could be real and/or imaginary (complex).
However is their is one complex root (a + i.b), it's conjugate is also
a root (a-i.b).
In the equation x⁴ - 4x³ - 2x² + 12x + 9 = 0, we have already 3 roots, then the 4rth cannot be a complex one since we don't have a fifth for its conjugate.
The expression is an xy⁻⁶ /y²x⁶ algebraic expression
The equivalent expression of x y⁻⁶ /y²x⁶ is 1/x⁵y⁸
<h3>How to determine the expression?</h3>
The algebraic expression is given as:
x y⁻⁶ /y²x⁶
Apply the law of indices
x¹⁻⁶ y⁻⁶⁻²
Evaluate the differences
x⁻⁵ y⁻⁸
Rewrite as:
1/x⁵y⁸
Hence, the equivalent expression is 1/x⁵y⁸
Read more about equivalent expressions at:
brainly.com/question/2972832
Answer:1 mile traveled at the rate of 200 miles in 60 minutes. ... Therefore, it would take 18 seconds to travel 1 mile going at a speed of 200 miles per hour!
Step-by-step explanation:
Answer:
241
Step-by-step explanation:
15th squared number = 225
4th squared number = 16
225 + 16 = 241