Answer:
Step-by-step explanation:
A:y=3x+4
Answer:

Step-by-step explanation:


To use the order of operations stands for (Parenthesis, Exponents, Multiply, Divide, Add, and Subtract) from left to right.
First, do parenthesis.
17(-12+3)
(-12+3)=-9
17(-9)
Then, multiply.
17*9=153
17(-9)=-153
-153

The correct answer is -153.
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.