How do you find the product #(4-x)(4+x)#?
1 Answer
May 8, 2018
Explanation:
#"these are the factors of a "color(blue)"difference of squares"#
#•color(white)(x)a^2-b^2=(a-b)(a+b)#
#"here "a=4" and "b=x#
#rArr(4-x)(4+x)=4^2-x^2=16-x^2#
