Question

Guys pls i need this asap as it is due in one hour pls could u answer this for me i will appreciate it so much.

Answer 1

a=1250
5x^2/2
5(10)^2/2
50^2/2
2500/2
1250

B=20
2x^2(x-5)/10x
2(10)^2(10-5)/10(10)
20^2(5)/100
400(5)/100
2000/100
20