1 )33m^2n^6k = 3k
77m^5n^6 7m^3
2) b^2*(b+c) =b^2
(b-2)*(b+c) b-2
3) t^2-t = t(t-1) = - t
4-4t 4(1-t) 4
4) 9y^2-25z^2= (3y-5z)(3y+5z)=3y+5z
12y-20z 4(3y-5z) 4
5) 9x^2+24xy+16y^2= (3x+4y)^2 = 3x+4y
9x^2-16y^2 (3x-4y)(3x+4y) 3x-4y
6) x^3+8=(x+2)(x^2-2x+4)=x^2-2x+4
x^2-4 (x-2)(x+2) x-2
1 )33m^2n^6k = 3k
77m^5n^6 7m^3
2) b^2*(b+c) =b^2
(b-2)*(b+c) b-2
3) t^2-t = t(t-1) = - t
4-4t 4(1-t) 4
4) 9y^2-25z^2= (3y-5z)(3y+5z)=3y+5z
12y-20z 4(3y-5z) 4
5) 9x^2+24xy+16y^2= (3x+4y)^2 = 3x+4y
9x^2-16y^2 (3x-4y)(3x+4y) 3x-4y
6) x^3+8=(x+2)(x^2-2x+4)=x^2-2x+4
x^2-4 (x-2)(x+2) x-2