2*0.8*0.6
(2x²-3xy-4y²)-(-x²-2xy+y² )
13×10^-7
1225*99/5+77-99
48.97 to 1 decimal place
2p + 0.75S = 250 and p+s=200
work out the value of h when h = 8nsquared and n = 3
3.5- 4
simplify -2√4y^5
