Q1) Factorise the following;
70z + 21 = [ 7(10z + 3)]

Q1) Factorise \(x^2 + 6x -27\). [ \((x + 9)(x -3)\)]

Q1) Factorise the following;
\(x^2 -17x + 70 =\)
[ \((x -10)(x -7)\)]

Q2) Factorise the following;
4y + 4 = [ 4(y + 1)]

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

Q2) Factorise the following;
\(x^2 -7x + 10 =\)
[ \((x -2)(x -5)\)]

Q3) Factorise the following;
80y + 30 = [ 10(8y + 3)]

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

Q3) Factorise the following;
\(x^2 -6x + 8 =\)
[ \((x -2)(x -4)\)]

Q4) Factorise the following;
35y + 42 = [ 7(5y + 6)]

Q4) Factorise \(x^2 -2x -24\). [ \((x + 4)(x -6)\)]

Q4) Factorise the following;
\(x^2 -11x + 28 =\)
[ \((x -4)(x -7)\)]

Q5) Factorise the following;
7x + 70 = [ 7(x + 10)]

Q5) Factorise \(x^2 -5x -14\). [ \((x + 2)(x -7)\)]

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

Q6) Factorise the following;
72z -16 = [ 8(9z -2)]

Q6) Factorise \(x^2 -7x -18\). [ \((x + 2)(x -9)\)]

Q6) Factorise the following;
\(x^2 -12x + 35 =\)
[ \((x -7)(x -5)\)]

Q7) Factorise the following;
28z -21 = [ 7(4z -3)]

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

Q7) Factorise the following;
\(x^2 -8x + 15 =\)
[ \((x -5)(x -3)\)]

Q8) Factorise the following;
5y + 50 = [ 5(y + 10)]

Q8) Factorise \(x^2 -5x -24\). [ \((x + 3)(x -8)\)]

Q8) Factorise the following;
\(x^2 -5x + 6 =\)
[ \((x -3)(x -2)\)]

Q9) Factorise the following;
100y -30 = [ 10(10y -3)]

Q9) Factorise \(x^2 -2x -8\). [ \((x + 2)(x -4)\)]

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

Q10) Factorise the following;
10w + 6 = [ 2(5w + 3)]

Q10) Factorise \(x^2 + x -42\). [ \((x + 7)(x -6)\)]

Q10) Factorise the following;
\(x^2 -13x + 42 =\)
[ \((x -6)(x -7)\)]