This is the concept of quadratic equations, to find out whether the two expressions we need to expand each of them:
(x)=(25+10x)(300-36x)
(x)=25(300-36x)+10x(300-36x)
(x)=7500-900x+3000x-360x^2
(x)=7500+2100x-360x^2
Expanding equation 2?
(x)=(100+20x)(100-12x)
(x)=100(100-12x)+20x(100-12x)
(x)=10000-1200x+2000x-240x^2
(x)=10000+800x-240x^2
considering the lead coeffienct
7500+2100x-360x^2≠10000+800x-240x^2
If you reflect across the x-axis, the y value change from positive to negative.
If you reflect across the y-axis, the x value changes from positive to negative
The sentences that indicate that Mei is making an investment mistake include:
- Currently, the stock price is $15.
- Mei is still waiting for the price to increase and is not selling her shares.
<h3>What is an investment?</h3>
An investment is an asset that's acquired in order to build wealth.
In this case, Mei bought the company’s stock at $30 per share but now it's $15. This indicates that she made a mistake.
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Answer:
4x^2−32x+28
Step-by-step explanation: