How do you solve this?(5+i)(5+2i)
1 answer:
Answer:
23 +15i
Step-by-step explanation:
Multiply the binomials in the usual way, then replace i² by -1 and simplify.
(5 +i)(5 +2i) = (5)(5) +(5)(2i) +(i)(5) +(i)(2i) = 25 +10i +5i +2i²
= 25 +15i +2(-1)
= 23 +15i
You might be interested in
x+6 is x+6. It's an expression. Not sure what you need help with.
18 is the answer //////////////////
Answer:
9x-2=5x+54
9x-5x=54+2
4x=56
4x/4=56/4
x= 14
180-124=56°
10y+6=56
10y=56-6
10y=50
10y/10=50/10
y=5
B= What’s the question. Maybe try looking at math-way
Answer:
5f + 7
Step-by-step explanation:
8f-3f+2+5
8f-3f is 5f and 2 + 5 is 7
5f+7
