X=15-12
X=3(number of days in difference to the number of people)
X=9-3
X=6 it would take 6 days to cut the grass with 9 boys
20971520
I did 4^11 x 5 (because you could say the first one is 5 x 1 and 4^0 = 1)
Subtract both like terms,
4qt-2qt will give us 2qt,
hope this help,
brainliest plz
Take 1/2 of x coeficient and square it
10/2=5
5^2=25
you has to add 25 to both sides to complete the square
(x+5)^2=25+37
