1.Simplify.
-2{x}^{2}-4x+13+12{x}^{2}+2x-25−2x2−4x+13+12x2+2x−25
2.Collect like terms.
(-2{x}^{2}+12{x}^{2})+(-4x+2x)+(13-25)(−2x2+12x2)+(−4x+2x)+(13−25)
3.Simplify.
10{x}^{2}-2x-1210x2−2x−12
1 m = 5 cm
6 m = 6 * 5 = 30 cm
20 m = 20 * 5 = 100 cm
dimensions are : 30 cm by 100 cm
Answer:
A
Step-by-step explanation:
(2n-1) /(n+9)
hope it can help u
