The fourth option.
The roots of x^3 + 3x^2 - 5x - 15 are - 3, +√5 and -√5.
To find the roots you can factor the polynomial in this way:
x^3 + 3x^2 - 5x - 15 = x^2 (x + 3) - 5(x + 3) = (x +3)(x^2 - 5)
The roots are the values of x that make the function = 0.
Then the roots are
x + 3 = 0 ==> x = 3, and
x^2 - 5 = 0 ==> x = +/- √5.
Answer:
yes your answer is correct
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
2−1+ (22−(−1)²) / (1−(2)(−1))
+2(2−(−1)) / (2)(−1)
22−(−1)2 / 1−(2)(−1)
+2(2−(−1)) / (2)(−1)
= -1
solve for "P" to find the Principal