Which method is most efficient method to use to solve 2x^2+4x-7=0

Use the quadratic formula

Step-by-step explanation:

Use the quadratic formula

For a quadratic function of the form:

Where a, b and c are the real coefficients of the polynomial

Then, for

The solutions are:

5x+10 is the correct one

hope this

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph