if x = - 5 / 4 and y = - 3 / 2 , what is the value of the expression - 2 x – y ^ 2 ?
x = - 5 / 4 and y = - 3 / 2 = = > - 2 ( - 5 / 4 ) - ( 3 / 2 ) ^ 2 = 10 / 4 - 9 / 4 = 1 / 4 ans : a
subtract(multiply(2, divide(5, 4)), power(divide(3, 2), 2))