The value of x is –2, 1, or 3 only.
<h3>What is graph?</h3>
Graph is a mathematical representation of a network and it describes the relationship between lines and points.
To find the roots by the graph we have to look at the graph at which at the x-axis the curve of the graph touches.
Here, the curve touches at -2, 1 and 3.
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There are 10 girls in the class. You want to multiply (3/5)x25, once product is found, you subtract it from 25, the product is 15, so 25-15=10girls
The answer is x= 9 or x=-15