$$-5y^2-19y+14$$

$$-14y^2-69y+33$$

$$-14y^2+71y+33$$

$$6x^2-xy-2y^2$$

$$5x^2-7x-2y^2$$

$$6x^2+xy-y^2$$

$$20x^2-2xy+6y^2$$

$$20x^2-23x+6y^2$$

$$20x^2-23xy+6y^2$$

$$-6x^3+7x^2+11x-18$$

$$-6x^3-7x^2+11x+18$$

$$6x^3-5x^2+9x+18$$

$$6x^3+5x^2-11x+18$$

$$21a^2-29a+26$$

$$21a^2+11a-12$$

$$-9a^2-11a+12$$

$$-9a^2+17a-9$$

$$21a^2-29a+26$$

$$-5a^2+11a-6$$

$$-9a^2-11a+12$$

$$5a^2-11a+6$$

$$x^6-28$$

$$x^6-3x^3-28$$

$$x^6+3x^3-28$$

$$x^3+28$$

$$18x^3+15x^2-42x+15$$

$$18x^3-15x^2+36x+15$$

$$-18x^3-12x^2+54x+15$$

$$-18x^3+18x^2-36x+15$$

$$2m^6-12m^3n+6n^2$$

$$4m^6-24m^3n+36n^2$$

$$2m^6-6n^2$$

$$4m^6-36n^2$$

$$16x^2-9y^2$$

$$16x^2+9y^2$$

$$16x^2-12xy+9y^2$$

$$16x^2+24xy-9y^2$$

$$9a^2-49b^2$$

$$9a^2-14ab+49b^2$$

$$3a^2-7b^2$$

$$9a^2+42ab+49b^2$$

$$\left(x-3\right)^2$$

$$\left(x+3\right)^2$$

$$\left(x+3\right)\left(x-3\right)$$

$$\left(x+9\right)\left(x+1\right)$$

$$\left(m+4\right)\left(m+1\right)$$

$$\left(m+2\right)\left(m-2\right)$$

$$\left(m-2\right)^2$$

$$\left(m+2\right)^2$$