Question

2a(3-b)+3(2a+1) якщо a=-2,3; b= 0,1

Answer 1

Ответ:

Пошаговое объяснение:

2*-2,3(3-0,1)+3(-2,3+1)= 13,8-0,46-6,9+3=9,44

Answer 2

To evaluate the expression 2a(3-b) + 3(2a+1) for the given values of a and b, you simply need to substitute the values and perform the arithmetic operations. Let's calculate it step-by-step for each combination:

1. When a = -2 and b = 0: 2a(3-b) + 3(2a+1) = 2(-2)(3-0) + 3(2(-2)+1) = -4(3) + 3(-3+1) = -12 + 3(-2) = -12 - 6 = -18

2. When a = -2 and b = 1: 2a(3-b) + 3(2a+1) = 2(-2)(3-1) + 3(2(-2)+1) = -4(2) + 3(-4+1) = -8 + 3(-3) = -8 - 9 = -17

3. When a = 3 and b = 0: 2a(3-b) + 3(2a+1) = 2(3)(3-0) + 3(2(3)+1) = 6(3) + 3(6+1) = 18 + 3(7) = 18 + 21 = 39

4. When a = 3 and b = 1: 2a(3-b) + 3(2a+1) = 2(3)(3-1) + 3(2(3)+1) = 6(2) + 3(6+1) = 12 + 3(7) = 12 + 21 = 33

So, the values of the expression for each combination of a and b are:

• When a = -2 and b = 0, the value is -18.
• When a = -2 and b = 1, the value is -17.
• When a = 3 and b = 0, the value is 39.
• When a = 3 and b = 1, the value is 33.