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maxonik [38]
3 years ago
5

Can y’all help me and factor the polynomial

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0
3x2-11x+10
No gcf so multiply first and last numbers together.
30- find two numbers that add/subtract to the number in then middle and multiply to be 30
Answer: (x-6)(x-5)
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Multiply (5 + 3i)(5 − 3i) <br><br> 16 + 15i <br><br> 16 − 15i <br><br> 16 <br><br> 34
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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}

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So: i^{2}=-1

We replace on the polynomial:

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

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