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LenaWriter [7]
4 years ago
9

Simplify the expression (2x − 9)(x + 6).

Mathematics
2 answers:
Brums [2.3K]4 years ago
8 0
<span>(2x - 9)(x + 6) = 2x(x + 6) - 9(x + 6) = 2x² + 12x - 9x - 54 = 2x² + 3x - 54</span>
katrin [286]4 years ago
3 0

Hi Jon

(2x - 9)(x+6)

Every time they ask you to simplify an expression the first must be in your mind is the Distributive property 

(2x)(x)+ (2x)(6) + (-9)(x) + (-9)(6)

= 2x² + 12x - 9x -54

= 2x² + 3x -54


I hope that's help:)


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Answer:

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3 years ago
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Mila [183]

Answer:

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Step-by-step explanation:

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_____

<em>Comment on the working</em>

We could work this several ways. Perhaps most straightforward would be to determine how many gallons Sally bought last week, and multiply that by the change in price. Or, the number of gallons could be multiplied by the new price per gallon and the difference from the old purchase amount found.

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How to do composition of functions​
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<h2><u><em>If you rather have the link to get this info lmk!!</em></u></h2>

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<h2 />
5 0
3 years ago
A cube has a lateral area of 676 square feet. What is the side length of the cube?
Firlakuza [10]
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