Question

Find the Value of X
(3x+13) (5x-7)

Answer 1

you will have to get this into an equation first. do you know how to foil?

Answer 2

I never really understood it :C

Answer 3

multiply the first terms.. outside terms.. inside terms.. and last terms... so 3x(5x) then 3x(7) then 13(5x) then 13(7)

Answer 4

that will give you a really long equation which is equal to 0.

Answer 5

then combine your like terms and your answer should be in the form ax^2 + bx + c = 0. then you can use the quadratic formula to solve.