Marco is 8 years younger than his brother paolo. if their product of their ages is 105, how old is marco? plz

Marco's age is 7 years old

Step-by-step explanation:

Let

x ----> Marco's age

y ----> Paolo's age

we know that

----> ----> equation A

----> equation B

substitute equation A in equation B

Solve the quadratic equation

The formula to solve a quadratic equation of the form

is equal to

in this problem we have

so

substitute in the formula

Remember that the solution cannot be a negative number

so

The solution is x=7

therefore

Marco's age is 7 years old

there is no grid

step-by-step explanation:

y -5 = (-1/4)(x + 8)

step-by-step explanation: