Easy
set to zero
those are the roots or xintersepts
(x+1)(x+4)(x-7)=0
x+1=0
x=-1
x+4=0
x=-4
x-7=0
x=7
xints are (-4,0) (-1,0) (7,0)
Answer: 272.85
(It’s 21.4 times 12.75)
10/5÷5/5=2/1 or 2 so all you had to do was put the numbers over each other and simplify
