Factorise the following:
b) x^2 – 12x + 32

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Find the distance between (7,-6) and (-3,-9)