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# Expand & simplify3(f+3)+2(f+6)?

2 answers

Expand: multiply everything in the first bracket by 3 and everything in the second bracket by 2 3f+9+2f+12 Simplify: Collect like terms so that it looks neater 5f + 21

Eman KhalilA scientist with passion for spreading scientific knowledge! (+Arabic)17.5k students helped

Numbers that are next to brackets can be multiplied by everything inside those brackets, so: 3(f+3) —> (3 x f )+ (3 x 3 )and (2 x f ) + ( 2 x 6) Which makes: 3f + 9 + 2f + 12 Then you add the ‘f’s together and numbers together: 5f + 21