<h3>
Answer: B) 4 - 7i</h3>
==========================================================
Explanation:
When you have a quadratic in the form ax^2 + bx + c = 0, where a,b,c are real numbers, then a negative discriminant leads to having a pair of complex roots. The roots come in conjugate pairs meaning that p+qi is one root while p-qi is the other root. The p,q are real numbers.
In the case of 4+7i being one root, we have p = 4 and q = 7, since it matches with p+qi. The other root must be 4-7i since it matches with p-qi.
In short, we flip the plus to a minus when going from 4+7i to 4-7i. All of this applies when we have a,b,c as real numbers.
If we allowed a,b,c to be complex numbers, then the roots may not necessarily come in conjugate pairs.
8x2=16 and 11x2=22 all you have to do is add 16+22 and that gives you 38 i hope this helped
Answer:
x=1
Step-by-step explanation:
5
−
3
x
=
x
+
1
Move all terms containing x to the left side of the equation.
5
−
4
x
=
1
Move all terms not containing x to the right side of the equation.
−
4
x
=
−
4
Divide each term by −
4 and simplify.
x
=
1
1. 1000 2. 0.001. hope this helps.
Answer:
x=-8.5.
Step-by-step explanation:
First, write an equation. Twice x (2x) plus 7 (+7) is the same as (=) negative ten (-10), or 2x+7=-10. To solve, first subtract 7 from both sides to get 2x=-17. Then, divide both sides by 2 (x=-8.5).
