29-04-2015
Mathematics

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expand and simplify (x-2)(3x+5)

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29-04-2015

so use distributive property
a(b+c)=ab+ac or in this case
(a+b)(c+d)=(a+b)(c)+(a+b)(d)=ac+bc+ad+bd

so
multiply each
(x-2)(3x+5)=(x-2)(3x)+(x-2)(5)=3x^2-6x+5x-10= add like terms 3x^2-x-10

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