21.59-13.09= 8.5 cm
if its centered, it will same distance from the margin from the left and right.
So its distance from left or right margin is 8.5/2 = 4.25 cm
Ok. Firstly, we solve 5÷5=1. Next, we take 1 and multiply that by 7 which is 1×7=7. Lastly we take that and add one to it which is 7+1=8. Hence, our answer is 8.
(x+1)(x-4)-(x-2) = 0
x²-4x+x-4-x+2 = 0
x²-4x-2 = 0
/\ = (-4)² - 4*1*(-2)
/\ = 16 + 8
/\ = 24
x = (-(-4)+/- \/24) / 2
x = (4+/-\/4*6)/2
x = (4+/-2\/6)/2
x = 2+/-\/6
x' = 2+\/6
x" = 2-\/6
Omg i would just guess and go for the third one