Question

(1-4b)*(4b+1)+6b*(b-2)=

Answer 1

У меня получилось -2б(в квадрате)-12б+1

Answer 2

Let's solve the expression step by step:

(1 - 4b) * (4b + 1) + 6b * (b - 2)

Step 1: Distribute the terms inside the parentheses:

(1 * 4b + 1 * 1) - (4b * 4b + 4b * 1) + (6b * b - 6b * 2)

Step 2: Simplify the multiplication:

(4b + 1) - (16b^2 + 4b) + (6b^2 - 12b)

Step 3: Combine like terms:

4b + 1 - 16b^2 - 4b + 6b^2 - 12b

Step 4: Combine the remaining terms:

-16b^2 + 6b^2 + 4b - 4b - 12b + 1

Step 5: Combine like terms again:

(-16b^2 + 6b^2) + (4b - 4b - 12b) + 1

Step 6: Simplify further:

-10b^2 - 12b + 1

So the final simplified expression is:

-10b^2 - 12b + 1