Find the axis of symmetry of the parabola. Y=2x^2+4x-1

x = - 1

Step-by-step explanation:

i will take them

step-by-step explanation:

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.