Question

multiplique las expresiones algebraicas usando una formula de producto notable y simplifique

32. (x-3y) ²=
33. (2x+3y)²=
34. (r-2s) ²=
35. (X+5) (X-5)=
36. (y-3) (y+3)=

Answer 1

Respuesta:

${(x - 3y)}^{2} = {x}^{2} - 2(3y)(x) + (3y)^{2} \\ {x}^{2} - 6xy + 9 {y}^{2}$

${(2x + 3y)}^{2} = {(2x)}^{2} + 2(2x)(3y) + {(3y)}^{2} \\ 4 {x}^{2} + 12xy + 9 {y}^{2}$

$(r - 2s)^{2} = {r}^{2} - 4rs + 4 {s}^{2}$

$(x + 5)(x - 5) = {x}^{2} - {5}^{2}$

$(y - 3)(y + 3) = {y}^{2} + 9$