Write the quadratic equation in general form. what is the value of b 2 - 4ac? 1 = 2x 2 7x 40 41 57

= 57

Step-by-step explanation:

The general form of the quadratic equation is:

             ....[1]

Given the equation:

Subtract 1 from both sides we have;

or we can write this as:

We have to find the

Compare equation with equation [1]

a = 2 , b = 7 and c = -1

then;

Therefore, the  quadratic equation in general form is, and the value of   is, 57

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64