91Ó°ÊÓ

Classify each binomial as either a sum of cubes, a difference of cubes, a difference of squares, or none of these. $$ 100 y^{8}-25 x^{4} $$

Classify the following as either a perfect-square trinomial, a difference of two squares, a polynomial having a common factor, or none of these. \(4 t^{2}+9 s^{2}+12 s t\)

Multiply. $$6 a^{2}\left(-8 a b^{2}\right)$$

Write an equivalent expression by factoring out the greatest common factor. $$9 x^{2}-3 x+3$$

Solve. $$(2 t+5)(t-7)=0$$

Factor completely. $$ 8 a^{3}+1 $$

Multiplying Any Two Polynomials Multiply. $$(3 r-4)(2 r+1)$$

Write an equivalent expression by factoring out a factor with a negative coefficient. $$-5 x-35$$

Factor completely. $$ r s^{4}+64 r s $$

Solve. $$8 y+y^{2}+15=0$$