Question

7Ix + 2I - I2y - 9I при x= -5, y= -3

Answer 1

7I-5+2I-I2*(-3)-9I= 7*I-3I-I-6-9I=7*3-15=21-15=6

Answer 2

To evaluate the expression 7Ix + 2I - I2y - 9I when x = -5 and y = -3, we need to substitute the values of x and y into the expression and perform the calculations.

Given: x = -5 y = -3

Now, let's substitute these values into the expression:

7Ix + 2I - I2y - 9I = 7(-5) + 2 - (2)(-3) - 9 = -35 + 2 + 6 - 9 = -36

So, the value of the expression when x = -5 and y = -3 is -36.