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Solving Quadratic Equations: Square Root Property — Unit test

Question 9 of 15 • FL-1200710-Mathematics for College Algebra A

Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Select two options.y = x2 + 5x + 10y + 5x = x2 + 10 + 4x – 100 = x2 – 9x0 = x2 – 9x + 20One x-value of a solution to the system is 4.

Answer
A
y = x2 + 5x + 10
B
y + 5x = x2 + 10 + 4x – 10
C
0 = x2 – 9x
D
0 = x2 – 9x + 20
E
One x-value of a solution to the system is 4.
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