Question

(x + 7)(x − 7)

Answer 1

@Directrix someone explained this but i want to compared steps.

Answer 2

what do you mean/asking for?

Answer 3

oh they are asking for the product.

Answer 4

x^2-49
x*x=x^2
7*-7=-49

Answer 5

I was told a procress that works but not without a variable infront of the parenthesis , so im confused on this.
and thats all i need to do @littlelotte ?

Answer 6

http://www.algebrahelp.com/lessons/simplifying/foilmethod/pg2.htm

Answer 7

thank you also @HomeschoolGrad :)

Answer 8

(x+7)(x-7)=x^2-7x+7x-49=x^2-49