From given equation find the value of x: 2x² + 9x − 5
Choose the most appropriate option.
A) 1 / 2
B) 1
C) 3
D) 4
E) 5

Rationale: that quadratic is factored as follows : 2 x ² + 9 x − 5 = ( 2 x − 1 ) ( x + 5 ) . lesson 17 . now , it is easy to see that the second factor will be 0 when x = − 5 . as for the value of x that will make 2 x − 1 = 0 , we must solve that little equation . ( lesson 9 . ) we have : 2 x = 1 x = 1 2 the solutions are : x = 1 / 2 or − 5 a
Answer: A