Express each of the following in a+bi form. a)(2 +5i)+(4 +3i)b)(−1+2i) − (4 − 3i)c)(5+3i)(3 +5i)d)(1 +i)(2 − 3i) +3i(1− i) − i

a 6+ 8i

b -5 + 5i

c 34i

d 8 + i

Step-by-step explanation:

Add them together  6 + 8i

Add them together -5 + 5i

Multiply it out  15 + 25i + 9i + 15

Add them together ( = the number times -1) 34i

Multiply it out  (2 - 3i + 2i - 3) + (3i - 3) - i

Add what is in the parenthesis together ( = the number times -1) (5 - i) + (3 + 3i) - i

Add them together 8 + i

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11