Stellacrossley123 Stellacrossley123

15-10-2015
Mathematics

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What's (X+3 (X+5) it's really confusing me and I need some help please

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ciathorn14 ciathorn14

15-10-2015

Well when you see parentheses set up like these together that automatically means to multiply. The solution is:
Apply the FOIL method: (a+b)(c+d)=ac+ad+bc+bd
x2+5x+3x+15
Simplify
x2+8x+15

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