x^2+7x+10<25
x^2+7x-15<0
x^2+7x+10>0
x<2 U x>5
x=(7+-sqrt(49+60))/2
x>(7+sqrt(109))/2 U x<(7-sqrt(109))/2
x^2+7x+10<25
x^2+7x-15<0
x^2+7x+10>0
x<2 U x>5
x=(7+-sqrt(49+60))/2
x>(7+sqrt(109))/2 U x<(7-sqrt(109))/2