Question

John is x years old.Jack is 4 years younger than John.The product of the ages of John and Jack is 320.Form a quadratic equation. @sammixboo

Answer 1

What did you get?

Answer 2

Sorry I might take a minute or two to respond because I am having internet problems

Answer 3

alrite :)

Answer 4

idk :(

Answer 5

I am confusing myself now. I know that John is 20 and Jack is 16, but I can't form the equation. @ganeshie8 can you help?

Answer 6

@campbell_st

Answer 7

Jack = x -4. John = x

The product x(x -4)= 320

Just distribute and then subtract 320 from both sides of the equation

Answer 8

x^2-4x-320=0

Answer 9

thnx @campbell_st @sammixboo

Answer 10

That's it... Reading the question there in no need to solve