Channa was asked to write an expression equivalent to i(2 + 3i) (4i - 1) in the form a+bi. Here is her work: Channa's Work First, I simplified i(2 + 3i) 3i i2i 3i Then, I simplified (2i+ 3i) (4i - 1) and combined like terms. 4i -1 2i 8i -2i 31 12i3-31 My final answer is 12i + 5i - 2i. 1. Identify one portion of Channa's work that is correct. 2. Write an expression equivalent to - i(2+3)(4i 1) in the form a + bi. Show your thinking. (Note: i = 1)