Question

A2-4ab+b7/2b-a если a=-3 b=-1

Answer 1

-3×2-4×(-3) (-1) +(-1) ×7/2×(-1) +3= -11, 5

Answer 2

To evaluate the expression A = (2a - 4ab + b^7) / (2b - a) with the given values a = -3 and b = -1, we simply substitute these values into the expression and perform the calculations step by step:

Step 1: Substitute the values of a and b into the expression A. A = (2(-3) - 4(-3)(-1) + (-1)^7) / (2(-1) - (-3))

Step 2: Simplify the expression inside the parentheses. A = (-6 + 12 + (-1)) / (-2 + 3)

Step 3: Perform the additions and subtractions inside the parentheses. A = 5 / 1

Step 4: The result is simply the numerator since the denominator is 1. A = 5

Therefore, the value of the expression A when a = -3 and b = -1 is 5.