Q1) Factorise the following;
9x + 81 = [ 9(x + 9)]

Q1) Factorise \(x^2 + 7x + 6\). [ \((x + 6)(x + 1)\)]

Q1) Factorise \(x^2 + 2x -15\). [ \((x + 5)(x -3)\)]

Q2) Factorise the following;
10x + 100 = [ 10(x + 10)]

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

Q2) Factorise \(x^2 -2x -8\). [ \((x + 2)(x -4)\)]

Q3) Factorise the following;
8w + 16 = [ 8(w + 2)]

Q3) Factorise \(x^2 + 3x + 2\). [ \((x + 2)(x + 1)\)]

Q3) Factorise \(x^2 -3x -10\). [ \((x + 2)(x -5)\)]

Q4) Factorise the following;
6x + 42 = [ 6(x + 7)]

Q4) Factorise \(x^2 + 12x + 20\). [ \((x + 2)(x + 10)\)]

Q4) Factorise \(x^2 -x -6\). [ \((x + 2)(x -3)\)]

Q5) Factorise the following;
3y + 6 = [ 3(y + 2)]

Q5) Factorise \(x^2 + 12x + 27\). [ \((x + 3)(x + 9)\)]

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

Q6) Factorise the following;
4z + 20 = [ 4(z + 5)]

Q6) Factorise \(x^2 + 10x + 24\). [ \((x + 4)(x + 6)\)]

Q6) Factorise \(x^2 + 2x -8\). [ \((x + 4)(x -2)\)]

Q7) Factorise the following;
5z + 25 = [ 5(z + 5)]

Q7) Factorise \(x^2 + 16x + 60\). [ \((x + 6)(x + 10)\)]

Q7) Factorise \(x^2 -4x -12\). [ \((x + 2)(x -6)\)]

Q8) Factorise the following;
5x + 40 = [ 5(x + 8)]

Q8) Factorise \(x^2 + 14x + 48\). [ \((x + 6)(x + 8)\)]

Q8) Factorise \(x^2 -x -6\). [ \((x + 2)(x -3)\)]

Q9) Factorise the following;
2z + 8 = [ 2(z + 4)]

Q9) Factorise \(x^2 + 10x + 25\). [ \((x + 5)(x + 5)\)]

Q9) Factorise \(x^2 -5x -14\). [ \((x + 2)(x -7)\)]

Q10) Factorise the following;
5z + 35 = [ 5(z + 7)]

Q10) Factorise \(x^2 + 19x + 90\). [ \((x + 9)(x + 10)\)]

Q10) Factorise \(x^2 + 4x -21\). [ \((x + 7)(x -3)\)]