Multiply -4b by 1-b/b?
I did -4b/1 × 1-b/ b
But my answer isn't adding up?
What were you expecting it to "add up" to?
-4b * (1-b)/b
= -4b(1-b)/b
= -4(1-b)
= 4b-4
I did -4b/1 × 1-b/ b
But my answer isn't adding up?
-4b * (1-b)/b
= -4b(1-b)/b
= -4(1-b)
= 4b-4