Factorise 3x+12
We should start by looking for the highest common factor of the 2 numbers involved in the equation (3&12)If you cannot do this immediately in your head, create a factor tree or list the factors3: 312: 2, 3, 4, 6, 12The highest common factor is 3, so we put 3 outside the bracket:3(Now, what do we need to multiply 3 by to get 3x?3(xNow, what do we need to multiply 3 by to get 12?3(x+4)
ET
Related Maths GCSE answers
All answers ▸In a recent election, 42% of the voters were male. There were 400 more female voters than male voters. Assuming all voters are either male or female, how many voters were there overall?
Make x the subject of the following formula: x/2 + 3 = y - 2
If side A is 3m and side B is 4m, what would be the length of the remaining side C?
Find the roots of the quadratic equation 2x^2 - 15x - 8