if one root of the equation 2 x ^ 2 + 3 x – k = 0 is 7 , what is the value of k ?
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
add(multiply(2, power(7, const_2)), multiply(3, 7))