Up to 12 people p can fit in the van

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Shape a is congruent to shape , as shown by a reflection across the y-axis and then a translation down units. shape b is congruent to shape , as shown by a reflection across the y-axis and then a translation down units.

Is (root2 -2)^2 rational or irrational. show the steps and answer fast