further expand by 2w(2w+1)+1(2w+1) so you use what was in the first bracket to multiply the second bracket
then it will be 2w×2w= 4w^2 that how I got that part so you multiply what's in the bracket by what is outside of it = 4w^2 +2w+2w+1 = 4w^2 +4w not 4w^2 because it's not multiplication +1
Let's make an equation. T will be the number. (T+5)/4=7 Let's multiply both sides by 4 to get T by itself. T+5=28 Subtract 5 from both sides. T=23 Your number is 23.
