Pls help I beg you pls help

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)