Mental Maths Factorising Double Brackets
| Quick Quiz |
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| Answer |
Q1) Expand and simplify
\(10(5w + 3) \)=____
\(50w + 30\)
Q2) Expand and simplify
5w(10w + 2) =____
\(50w^2 + 10w\)
Q3) Factorise the following;
5x + 50 =____
5(x + 10)
Q4) Factorise the following;
30w + 20 =____
10(3w + 2)
Q5) Factorise \(x^2 + 7x + 10\).____
\((x + 5)(x + 2)\)
Q6) Factorise \(x^2 + 6x + 5\).____
\((x + 5)(x + 1)\)
Q7) Factorise \(x^2 -7x -18\).____
\((x + 2)(x -9)\)
Q8) Factorise \(x^2 -x -12\).____
\((x + 3)(x -4)\)
Q9) Factorise the following;
\(6 x^2 + 17 x+ 5= \)
____
\((2x + 5)(3x + 1)\)
Q10) Factorise the following;
\(9 x^2 + 12 x+ 4= \)
____
\((3x + 2)(3x + 2)\)