Whats the value of c^2-d^2 if c+d=7 and c-d=-2?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)