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