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Sveta_85 [38]
3 years ago
11

(5-2i)(1-3i) solve in steps

Mathematics
1 answer:
Allushta [10]3 years ago
3 0
Foil
5*1-5*3i-1*2i+2i*3i
5-15i-2i+6i^2
Remember i^2=-1
5-15i-2i+6(-1)
5-15i-2i-6
Combine like terms
-1-17i
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30 PTS <br> Please make sure everything is easy to understand
Semenov [28]
So for number one you would start with parentheses (-2 x 4) and that would get you -8 and then you would forget about the parentheses and drop everything else down and now the problem would be -8 x 3 and remember anytime you have a number by parentheses it’s multiplication and that dot by the parentheses also stands for multiplication so -8 x 3 would get you -24. You could also look at it as positive 8 x 3 and that would get you 24 and then you could just add that negative sign to the 24
8 0
3 years ago
The sum of two numbers that differ by 3 is x, what is the value of the greater of the two numbers?
jolli1 [7]

Answer:


Step-by-step explanation:

You really don't have enough information to solve this with one answer. You want a value for y and there is no what to limit it to just 1 set of values. For example if x = 23 then

x = y + y - 3

x = 2y - 3

23 = 2y - 3           Add three to both sides

23+3 =  2y           Combine

26 = 2y                Divide by 2

26/2 = 2y/2          Do the division

13 = y

The smaller number is 13 - 3 = 10

Their sum is 13 + 10=23           But that answer is not unique.

====================

Suppose x = 13

13 = 2y - 3              Add 3

13 + 3 = 2y

16 = 2y

y =8

The larger number = 8

The smaller number = 5

=======================

The best I can do is give you the equation which is

x = 2y - 3

5 0
4 years ago
6 + p &lt;4 solve and graph
guajiro [1.7K]

Answer:

harjot sinfh answer hai bro is

6 0
3 years ago
Read 2 more answers
What us the multiplicative inverse of 10^-10
natima [27]

Answer:

It would be the negative numbers

Step-by-step explanation:

6 0
4 years ago
Seven times the difference of twice a number and nine ...
neonofarm [45]

Answer:

7(2x-9)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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