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