Question

thr product of Tanvy's age (in years) 5years ago and her age 8yaers later is 30. find her present age​

Answer 1

Answer:

I can't answer sorry ok

Answer 2

Step-by-step explanation:

let her present age be.x yrs

and 5 yrs ago = y years later

(x-5) (x+y) =30

x² +3x -40 =30

x² +3x -70=0

x²+10x-7x-70=0

x(x+10) -7( x+10)=0

x=7 years