What is a hand drawn picture or design of a 3D object

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

Solve the system of equations. 2x-2y=-4 and x+y=8. show work