Solve each equation, if possible. write irrational numbers in simplest radical form. describe the strategy you used to get your solution and tell why you chose that strategy.
1. x^2+4=0
2. x^2-6x+1=0

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.