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 ▸Calculate the largest share when £400 is shared in the ratio 1 : 2 : 5.
Factorise X^2 + 13x + 42; from this, please give the answer to X^2 + 13x + 42 = 0
Solve the simultaneous equations : x^2 + y^2 = 13 and x = y - 5 .
We have the following fractions: 6/16, 9/24, 12/32 and 15/35. Which fraction is not equivalent to 3/8?