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densk [106]
3 years ago
9

Identify the leading coefficient in the following polynomial: – 5x² + 3x - 7

Mathematics
1 answer:
insens350 [35]3 years ago
7 0

Answer:

-5

Step-by-step explanation:

The leading coefficient means the thing you're multiplying your highest power by. Here, your highest power of x is x^2, and that term's coeff. is -5, so the leading coefficient is -5.

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(7z^3+42z^2-15z+1)- (36z^2+12z-21)​
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Answer:

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Step-by-step explanation:

The given question is of subtraction:

So,

(7z^3+42z^2-15z+1)- (36z^2+12z-21)​

=7z^3+42z^2-15z+1-36z^2-12z+21

Combining alike terms to simplify

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So the answer in simplified form is:

7z^3+6z^2-27z+22 ..

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