Q1) Factorise the following;
25z + 15 = [ 5(5z + 3)]

Q1) Factorise \(x^2 + x -12\). [ \((x + 4)(x -3)\)]

Q1) Factorise the following;
\(x^2 -8x + 16 =\)
[ \((x -4)(x -4)\)]

Q2) Factorise the following;
2z + 20 = [ 2(z + 10)]

Q2) Factorise \(x^2 -5x -14\). [ \((x + 2)(x -7)\)]

Q2) Factorise the following;
\(x^2 -6x + 8 =\)
[ \((x -2)(x -4)\)]

Q3) Factorise the following;
6z + 24 = [ 6(z + 4)]

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

Q3) Factorise the following;
\(x^2 -4x + 4 =\)
[ \((x -2)(x -2)\)]

Q4) Factorise the following;
40w -35 = [ 5(8w -7)]

Q4) Factorise \(x^2 -2x -8\). [ \((x + 2)(x -4)\)]

Q4) Factorise the following;
\(x^2 -11x + 18 =\)
[ \((x -9)(x -2)\)]

Q5) Factorise the following;
63y -81 = [ 9(7y -9)]

Q5) Factorise \(x^2 + 4x -21\). [ \((x + 7)(x -3)\)]

Q5) Factorise the following;
\(x^2 -8x + 15 =\)
[ \((x -5)(x -3)\)]

Q6) Factorise the following;
50x + 40 = [ 10(5x + 4)]

Q6) Factorise \(x^2 -3x -18\). [ \((x + 3)(x -6)\)]

Q6) Factorise the following;
\(x^2 -9x + 20 =\)
[ \((x -4)(x -5)\)]

Q7) Factorise the following;
27y + 72 = [ 9(3y + 8)]

Q7) Factorise \(x^2 + 3x -40\). [ \((x + 8)(x -5)\)]

Q7) Factorise the following;
\(x^2 -9x + 14 =\)
[ \((x -2)(x -7)\)]

Q8) Factorise the following;
27w -72 = [ 9(3w -8)]

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

Q8) Factorise the following;
\(x^2 -7x + 12 =\)
[ \((x -3)(x -4)\)]

Q9) Factorise the following;
63y + 36 = [ 9(7y + 4)]

Q9) Factorise \(x^2 -7x -18\). [ \((x + 2)(x -9)\)]

Q9) Factorise the following;
\(x^2 -6x + 9 =\)
[ \((x -3)(x -3)\)]

Q10) Factorise the following;
56y -16 = [ 8(7y -2)]

Q10) Factorise \(x^2 -4x -12\). [ \((x + 2)(x -6)\)]

Q10) Factorise the following;
\(x^2 -7x + 10 =\)
[ \((x -5)(x -2)\)]