Which two numbers would give you a sum of -9 and a product of -10?

Which two numbers would give a sum of 4 and a product of -21?

Which two number would give a sum of -12 and a product of 27?

Which two numbers would give the sum of 8 and the product of 12?

Which two numbers would give the sum of 15 and the product of 56?

Which two numbers would give the sum of 14 and the product of 48?