Sagot :
Done. Try to answer some of your assignments. If quadratic equation (which is your 'x') has a real number, divide the given equation by the number with your 'x' and you'll come up with the answer.
[tex](2x-5)(x+7)=0\\\\2x-3=0 \ \ or \ \ x+7=0\\\\2x =5\ \ /:2 \ \ \ or \ \ \ x=-7\\\\ x= \frac{5}{2} \ \ \ or \ \ \ x=-7[/tex]