Answer:
hope it will help you
Step-by-step explanation:
f(x)=x²+7
X(-2)=?
therefore X(-2)=(-2)²+7
=4+7
=11
we know that

we have

substitute the value of
in the expression above

therefore
<u>the answer is</u>

![\left[\begin{array}{ccc}5\\3\\2\end{array}\right] \times[5 \ \ \ 3 \ \ \ 2]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5%5C%5C3%5C%5C2%5Cend%7Barray%7D%5Cright%5D%20%5Ctimes%5B5%20%5C%20%5C%20%5C%203%20%5C%20%5C%20%5C%202%5D)
Matrix multiplications are defined if the number of columns in the first matrix is equal to the number of rows in the second matrix.

Multiply the first element of the array by the first element of the second array to get the element of the first row of the first column in the product array.

The remaining elements of the product matrix are obtained in the same way.

Simplify each item by multiplying the individual terms.


Answer:
There are no real values of x for point P to belong to the 4 quadrant
Step-by-step explanation:
<u><em>The question in English is</em></u>
To what real values of x does the point P (3x -6, 2x +4) belong to the 4th quadrant?
we know that
A point in the fourth Quadrant has the x-coordinate positive and the y-coordinate negative
we have the point
P (3x-6, 2x+4)
----> inequality A ( x-coordinate must be positive)
---> inequality B ( y-coordinate must be negative)
Solve Inequality A
-----> (2,∞)
Solve Inequality B
----> (-∞,-2)
The solution of the system is
(-∞,-2) ∩ (2,∞)
therefore
The system has no solution
There are no real values of x for point P to belong to the 4 quadrant