Question

What is the product? –9x(5 – 2x)

Answer 1

Use the distributeive propepry
a(b+c)=ab+ac
remember that negative times negtive=positive and posititve tiem snegative is negative so

-9x(5-2x)=
-9x(5)+-9x(-2x)=
-45x+(+18x^2)=
-45x+18x^2
answer is 18x^2-45x