20% of 300
what isiisisis80isisis8080sis80isisis8080
2a/3-b/4 = 4
a/4-3b/4 =-9
find a and b
25% of 300
10+7+3
Factorize by completing the square :
y 4 + y 2 + 1
80+8
4 times 15
find the missing numbers
81,27,__,3__
prove that (2y-5)(4y-7)-(2y+1)(2y-1)+10y is a perfect square write in the form (ay+b)squared
