Expand (x+3)(x+6)

Step 1 Using the crab methodLooking at the first bracket:Multiply x by x to give x2Then multiply x by 6 to give 6xThen move onto 3 Multiply 3 by x to give 3xThen multiply 3 by 6 to give 18 Add all these together x2 +6x+3x+18= x2+9x+18

AB

Related Maths GCSE answers

All answers ▸

The area of a rectangle is 8cm^2. It has a length of (3x+1)cm and a width of (2x+5)cm. Work out the value of x.


Given the functions f(x) = (x + 2)/9 and g(x) = x^3 + 6, find fg(x).


How can you differentiate when to use SohCahToa and when to use the sine/cosine rules?


What is the photoelectric effect? (A-Level Physics)