Mr Daniels Maths
Difference of two squares

Set 1

Set 2

Set 3

Q1) Expand \((x+6)(x-6)\) = [ \(x^2 - 36\)]

Q1) Factorise \(x^2 - 49\)= [ \((x+7)(x-7)\)]

Q1) Factorise \(100x^2-9\)= [ \((10x + 3)(10x - 3)\)]

Q2) Expand \((x+10)(x-10)\) = [ \(x^2 - 100\)]

Q2) Factorise \(x^2 - 121\)= [ \((x+11)(x-11)\)]

Q2) Factorise \(49x^2-16\)= [ \((7x + 4)(7x - 4)\)]

Q3) Expand \((x+3)(x-3)\) = [ \(x^2 - 9\)]

Q3) Factorise \(x^2 - 169\)= [ \((x+13)(x-13)\)]

Q3) Factorise \(9x^2-4\)= [ \((3x + 2)(3x - 2)\)]

Q4) Expand \((x+1)(x-1)\) = [ \(x^2 - 1\)]

Q4) Factorise \(x^2 - 1\)= [ \((x+1)(x-1)\)]

Q4) Factorise \(25x^2-100\)= [ \((5x + 10)(5x - 10)\)]

Q5) Expand \((x+7)(x-7)\) = [ \(x^2 - 49\)]

Q5) Factorise \(x^2 - 64\)= [ \((x+8)(x-8)\)]

Q5) Factorise \(25x^2-4\)= [ \((5x + 2)(5x - 2)\)]

Q6) Expand \((x+9)(x-9)\) = [ \(x^2 - 81\)]

Q6) Factorise \(x^2 - 81\)= [ \((x+9)(x-9)\)]

Q6) Factorise \(64x^2-16\)= [ \((8x + 4)(8x - 4)\)]

Q7) Expand \((x+5)(x-5)\) = [ \(x^2 - 25\)]

Q7) Factorise \(x^2 - 36\)= [ \((x+6)(x-6)\)]

Q7) Factorise \(100x^2-64\)= [ \((10x + 8)(10x - 8)\)]

Q8) Expand \((x+8)(x-8)\) = [ \(x^2 - 64\)]

Q8) Factorise \(x^2 - 16\)= [ \((x+4)(x-4)\)]

Q8) Factorise \(49x^2-64\)= [ \((7x + 8)(7x - 8)\)]

Q9) Expand \((x+2)(x-2)\) = [ \(x^2 - 4\)]

Q9) Factorise \(x^2 - 25\)= [ \((x+5)(x-5)\)]

Q9) Factorise \(16x^2-49\)= [ \((4x + 7)(4x - 7)\)]

Q10) Expand \((x+4)(x-4)\) = [ \(x^2 - 16\)]

Q10) Factorise \(x^2 - 4\)= [ \((x+2)(x-2)\)]

Q10) Factorise \(4x^2-36\)= [ \((2x + 6)(2x - 6)\)]