Answer:
Step-by-step explanation:
x² - 17x + 72 = 0
Sum = -17
Product = 72
Factor = 8 , 9
x² - 8x -9x + (-8)*(-9) = 0
x(x - 8) -9(x -8) = 0
(x - 8 ) (x - 9) = 0
Length = (x - 8) units
Width = (x - 9) units
4
It's a pythagorean triple
$1.28
If you divide $5.12 by 4 you get 1.28
so it's 1.28 per
1
Step 1:
3x + 2 ( 5x - 3 ) = 7
Step 2:
3x + 10x - 6 = 7
Step 3:
13x - 6 = 7
Step 4:
13x = 13
x = 1
Hope This Helps :)
