Solve the following system of equations and show all work. y = x2 + 3, y = x + 5.
Equations form the basis of mathematics. There are many types of equations, which include quadratic, biquadratic, cubic, linear, and many others.
Answer: The solution to the given system of equations y = x2 + 3, y = x + 5, is x = -1 and x = 2.
Lets' understand the process
Explanation:
Given equations:
⇒ y = x2 + 3
⇒ y = x + 5
Now, we substitute y = x + 5 in the first equation.
⇒ x + 5 = x2 + 3
⇒ x2 - x - 2 = 0
Now, we can use the quadratic formula to solve the above equation.
⇒ x = [1 ± √{(-1)2 - 4(-2)(1)}] / 2(1)
⇒ x = [1 ± 3] / 2
⇒ x = -1 and x = 2.
Hence, the solution to the given system of equations is x = -1 and x = 2.
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