How to perform operation on Arraylist?

Perform the indicated operation (2 + 9i)(2 – 9i) Simplify answer. Type your answer in the form a + bi.)?

• 1 ) Perform the indicated operation (2 + 9i)(2 – 9i) Simplify answer. Type your answer in the form a + bi.) 2) Express in terms of I √(- 5) Simplify Answer. Type answer in form a + bi 3 )Multiply (3 + √(8))( 3 - √(8)). Simplify and type an exact answer, using radicals as needed 4 )Combine 5 √180 + √45 Type an exact answer, using radicals as needed. Simplify your answer. 5 ) Subtract. Simplify by collecting like radical terms, if possible 8 √7 – 6 √(7= )Type an exact answer, using radicals as needed

• Answer:

  1. (2-9i)(2+9i) Foil (2x2)+(18i-18i)+(-9i x 9i) 4+-81i^2( i^2 really equals -1) 4+81 85 is answer 2.answer is ( i radical 5) 3.i donr have the radical symbol on my iPhone.. (3 + radical 8)(3- radical 8) Foil it 9-8 Answer = 1 4. Answer is (33radical 5) 5. Answer is (2radical 7)