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Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebraically.

User Alex Belyaev
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1 Answer

12 votes
12 votes

Answer:

Therefore, the value of x is 5.

Explanation:

We can match each equation to find the solutions.


8x-40=x^(2)-2x-15


0=x^(2)-2x-8x-15+40


x^(2)-10x+25=0

Now, we need solve this quadratic equation.


(x-5)^(2)=0

Therefore, the value of x is 5.

I hope it helps you!

User Tim Siwula
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