Math
posted by Melissa .
Factor
1. 8a^22ab21b^2
2. 6m^290m+324
3.5x(2x)+4x(2x5)(3x4)
4. 9(y1)^225
5. 3x^227(2x)^2

4. 9(y1)^2  25 = [3(y1)]^2  5^2
= [3(y1)+5]*[3(y1)5]
= (3y2)(3y8)
5. 3x^2  27(2x)^2
= 3[x^2  9(2x)^2]
= 3[x^2  [3(2x)]^2]
= 3[(x+3(2x)][x3(2x)]
= 3(x + 6  3x)(x  6 + 3x)
= 3(2x+6)(4x6)
= 12(3x)(2x3)
It's late  someone else do 13