Q1) Factorise $x^2 -x -42$. [ $(x + 6)(x -7)$]

Q1) Factorise the following;
$x^2 -36 =$ [ $(x + 6)(x -6)$]

Q1) Factorise the following;
$6 x^2 + 7 x+ 2=$
[ $(2x + 1)(3x + 2)$]

Q2) Factorise $x^2 -x -6$. [ $(x + 2)(x -3)$]

Q2) Factorise the following;
$81x^2 -169 =$ [ $(9x -13)(9x + 13)$]

Q2) Factorise the following;
$8 x^2 + 14 x+ 3=$
[ $(2x + 3)(4x + 1)$]

Q3) Factorise $x^2 -x -30$. [ $(x + 5)(x -6)$]

Q3) Factorise the following;
$x^2 -81 =$ [ $(x -9)(x + 9)$]

Q3) Factorise the following;
$9 x^2 + 12 x+ 4=$
[ $(3x + 2)(3x + 2)$]

Q4) Factorise $x^2 + x -20$. [ $(x + 5)(x -4)$]

Q4) Factorise the following;
$x^2 -64 =$ [ $(x + 8)(x -8)$]

Q4) Factorise the following;
$9 x^2 + 12 x+ 4=$
[ $(3x + 2)(3x + 2)$]

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

Q5) Factorise the following;
$x^2 -4 =$ [ $(x + 2)(x -2)$]

Q5) Factorise the following;
$4 x^2 + 8 x+ 3=$
[ $(2x + 1)(2x + 3)$]

Q6) Factorise $x^2 -4x -12$. [ $(x + 2)(x -6)$]

Q6) Factorise the following;
$x^2 -49 =$ [ $(x + 7)(x -7)$]

Q6) Factorise the following;
$6 x^2 + 11x+ 4=$
[ $(2x + 1)(3x + 4)$]

Q7) Factorise $x^2 -2x -15$. [ $(x + 3)(x -5)$]

Q7) Factorise the following;
$x^2 -225 =$ [ $(x -15)(x + 15)$]

Q7) Factorise the following;
$4 x^2 + 8 x+ 3=$
[ $(2x + 1)(2x + 3)$]

Q8) Factorise $x^2 + x -12$. [ $(x + 4)(x -3)$]

Q8) Factorise the following;
$x^2 -9 =$ [ $(x -3)(x + 3)$]

Q8) Factorise the following;
$6 x^2 + 17 x+ 5=$
[ $(3x + 1)(2x + 5)$]

Q9) Factorise $x^2 + 3x -18$. [ $(x + 6)(x -3)$]

Q9) Factorise the following;
$x^2 -81 =$ [ $(x -9)(x + 9)$]

Q9) Factorise the following;
$6 x^2 + 7 x+ 2=$
[ $(2x + 1)(3x + 2)$]

Q10) Factorise $x^2 -x -6$. [ $(x + 2)(x -3)$]

Q10) Factorise the following;
$x^2 -49 =$ [ $(x -7)(x + 7)$]

Q10) Factorise the following;
$6 x^2 + 5 x+ 1=$
[ $(2x + 1)(3x + 1)$]