Question

7b+9a-7b^2/b при a= -16; b=-3

Answer 1

$7b + 9a - \frac{7b {}^{2} }{b} = 7b + 9a - 7b = 9a$
9*-16=-144

Answer 2

To calculate the expression 7b + 9a - 7b^2 / b when a = -16 and b = -3, we need to substitute the values of a and b into the expression and then perform the arithmetic operations.

Let's do the calculation step by step:

Step 1: Substitute the values of a and b into the expression:

7b + 9a - 7b^2 / b

Now, replace a with -16 and b with -3:

7(-3) + 9(-16) - 7(-3)^2 / (-3)

Step 2: Perform the arithmetic operations:

7(-3) = -21 9(-16) = -144 (-3)^2 = 9 -7(-3)^2 = -7 * 9 = -63

Now the expression becomes:

-21 - 144 - (-63) / (-3)

Step 3: Continue with the arithmetic operations:

-21 - 144 + 63 = -102

Finally, the result of the expression when a = -16 and b = -3 is:

-102