How can you do division in other ways like multiplication or something

Which of the following represents the factorization of the trinomial below? x^2+7x-30

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details

Leonardo wrote an equation that has an infinite number of solutions. one of the terms in leonardo’s equation is missing, as shown below.