2 years ago

-2=-4(-7y+1)+5(8+2y)

Mathematics

1 answer:

Eduardwww [97]2 years ago

3 0

Step 1: Disturbutive Property

Step 2: Combine Like Terms

Step 3: Get Like Terms On The Same Side

Step 4: Simplify If Need

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2 years ago

Solve for x: 2x + 3 + (-1) = x + 5

faust18 [17]

Answer:

x=3

Step-by-step explanation:

2x-x=5-3+1

x=3

I think that's it

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2 years ago

I need help for this

Alenkasestr [34]

Answers is
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3 years ago

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Answer:

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2 years ago

Multiply (5 + 3i)(5 − 3i) 16 + 15i 16 − 15i 16 34

Annette [7]

Answer:

(5 + 3i)(5 − 3i) = 34

Step-by-step explanation:

The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:

$(a-b).(a+b)=a^{2}-b^{2}$

So, in this case:

$(5+3i).(5-3i) = 5^{2}-(3i)^{2}$

$=25-9i^{2}$

Remember that $i=\sqrt{-1}$

So: $i^{2}=-1$

We replace on the polynomial:

$=25-9.(-1) = 25+9=34$

3 0

3 years ago

Read 2 more answers