If one root of the equation 2x^2 + 3x – k = 0 is 5, what is the value of k? Choose one:
A) 65
B) 79
C) 68
D) 87
E) 90
We just enter this root into the equation in order to recieve an equation to find the answer!   2*5^2+3*5-k=0   k=50+15= 
<gadget id="calculator">50+15</gadget>
<output>65</output>
65   The answer is 65
<result>A</result>
If one root of the equation 2x^2 + 3x – k = 0 is 5, what is the value of k?