Step-by-step explanation:
(6x2 + 3x - 9) - ( - 2x2 + 4 - 1)
6x2 + 3x - 9 + 2x2 - 4 + 1
8x2 + 3x - 14
Answer:
Step-by-step explanation:
We have the following complex number 
, we proceed to simplify the expression as follows:
1) 
Given.
2) 
Definition of division.
3) ![[(5i)\cdot (-2-6i)^{-1}]\cdot [(-2+6i)\cdot (-2+6i)^{-1}]](https://tex.z-dn.net/?f=%5B%285i%29%5Ccdot%20%28-2-6i%29%5E%7B-1%7D%5D%5Ccdot%20%5B%28-2%2B6i%29%5Ccdot%20%28-2%2B6i%29%5E%7B-1%7D%5D)
Modulative and associative properties/Existence of the additive inverser
4) ![[(5i)\cdot (-2+6i)]\cdot [(-2-6i)^{-1}\cdot (-2+6i)^{-1}]](https://tex.z-dn.net/?f=%5B%285i%29%5Ccdot%20%28-2%2B6i%29%5D%5Ccdot%20%5B%28-2-6i%29%5E%7B-1%7D%5Ccdot%20%28-2%2B6i%29%5E%7B-1%7D%5D)
Commutative and associative properties.
5) ![[(5i)\cdot (-2+6i)]\cdot [(-2-6i)\cdot (-2+6i)]^{-1}](https://tex.z-dn.net/?f=%5B%285i%29%5Ccdot%20%28-2%2B6i%29%5D%5Ccdot%20%5B%28-2-6i%29%5Ccdot%20%28-2%2B6i%29%5D%5E%7B-1%7D)
6) ![[(5i)\cdot (-2+6i)]\cdot [4+36]^{-1}](https://tex.z-dn.net/?f=%5B%285i%29%5Ccdot%20%28-2%2B6i%29%5D%5Ccdot%20%5B4%2B36%5D%5E%7B-1%7D)
/Definition of complex number/ 
7) ![[(5i)\cdot (-2)+(5i)\cdot (6i)]\cdot 40^{-1}](https://tex.z-dn.net/?f=%5B%285i%29%5Ccdot%20%28-2%29%2B%285i%29%5Ccdot%20%286i%29%5D%5Ccdot%2040%5E%7B-1%7D)
Definition of sum.
8) 
/Associative and commutative properties.
9) 
Commutative properties/Definition of complex number/
10) 
Distributive property.
11) 
Definition of division/Result.
Divide 4,856 by 16 and you will have the answer, 303.5.
Answer:
<em>40</em><em>,</em><em>600</em>
<em>hope</em><em> </em><em>helpful</em><em> </em>:)
Answer:
y=0
Step-by-step explanation:
