If one root of the equation 2x^2 + 3x – k = 0 is 7, what is the value of k?
Answers
A) 100	B) 110	C) 119	D) 120	E) 112

Rationale: we just enter this root into the equation in order to recieve an equation to find the answer ! 2 * 7 ^ 2 + 3 * 7 - k = 0 k = 98 + 21 = 119 the answer is c
Answer: C