Question

в письменном ввиде , даю 40 балов

Answer 1

$(6+v)^2+(4+v)^2=10^2\\36+12v+v^2+16+8v+v^2=100\\2v^2+20v-48=0; |:2\\v^2+10v-24=0\\D/4=5^2+24=49\\v_1=-5-7=-12; ,; ; v_2=-5+7=2$