Q1) Expand and simplify
$(z + 2)(z + 4)\equiv$ [ $z^2 + 6z + 8$]

Q1) Factorise $x^2 + 6x + 8$. [ $(x + 2)(x + 4)$]

Q1) Factorise $x^2 + x -6$. [ $(x + 3)(x -2)$]

Q2) Expand and simplify
$(y + 4)(y + 3)\equiv$ [ $y^2 + 7y + 12$]

Q2) Factorise $x^2 + 7x + 12$. [ $(x + 4)(x + 3)$]

Q2) Factorise $x^2 + x -12$. [ $(x + 4)(x -3)$]

Q3) Expand and simplify
$(z + 5)(z + 5)\equiv$ [ $z^2 + 10z + 25$]

Q3) Factorise $x^2 + 6x + 8$. [ $(x + 4)(x + 2)$]

Q3) Factorise $x^2 -x -6$. [ $(x + 2)(x -3)$]

Q4) Expand and simplify
$(z + 4)(z + 1)\equiv$ [ $z^2 + 5z + 4$]

Q4) Factorise $x^2 + 5x + 4$. [ $(x + 1)(x + 4)$]

Q4) Factorise $x^2 -3x -10$. [ $(x + 2)(x -5)$]

Q5) Expand and simplify
$(x + 2)(x + 3)\equiv$ [ $x^2 + 5x + 6$]

Q5) Factorise $x^2 + 6x + 8$. [ $(x + 4)(x + 2)$]

Q5) Factorise $x^2 -x -6$. [ $(x + 2)(x -3)$]

Q6) Expand and simplify
$(x + 3)(x + 5)\equiv$ [ $x^2 + 8x + 15$]

Q6) Factorise $x^2 + 7x + 12$. [ $(x + 3)(x + 4)$]

Q6) Factorise $x^2 + x -6$. [ $(x + 3)(x -2)$]

Q7) Expand and simplify
$(z + 1)(z + 2)\equiv$ [ $z^2 + 3z + 2$]

Q7) Factorise $x^2 + 6x + 5$. [ $(x + 5)(x + 1)$]

Q7) Factorise $x^2 -x -6$. [ $(x + 2)(x -3)$]

Q8) Expand and simplify
$(x + 3)(x + 1)\equiv$ [ $x^2 + 4x + 3$]

Q8) Factorise $x^2 + 10x + 25$. [ $(x + 5)(x + 5)$]

Q8) Factorise $x^2 + 2x -8$. [ $(x + 4)(x -2)$]

Q9) Expand and simplify
$(x + 5)(x + 1)\equiv$ [ $x^2 + 6x + 5$]

Q9) Factorise $x^2 + 5x + 4$. [ $(x + 1)(x + 4)$]

Q9) Factorise $x^2 + x -6$. [ $(x + 3)(x -2)$]

Q10) Expand and simplify
$(z + 4)(z + 1)\equiv$ [ $z^2 + 5z + 4$]

Q10) Factorise $x^2 + 3x + 2$. [ $(x + 1)(x + 2)$]

Q10) Factorise $x^2 -x -12$. [ $(x + 3)(x -4)$]