arachnid58 arachnid58

08-01-2019
Mathematics

contestada

consider the function f(x)=x^2+2x-15.what are the x-intercepts of the function?

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HelplessAtHomework HelplessAtHomework

08-01-2019

Answer:

x=3 and x= -5

Step-by-step explanation:

x^2+2x-15

Find the numbers that can be multiplied to equal the last term and added to equal the second term: x^2+5x-3x-15

Factor: x(x+5)-3(x+5)

Then you get: (x-3)(x+5)=0

Answer: x=3 and x=-5

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