# Special products examples...

2
by jenlienale

2015-07-04T10:33:17+08:00

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*square of a binomial -----> (x+2)^2
*square of a trinomial -----> (a+b+c)^2
*cube of a binomial
*sum and difefrence of two squares

2015-07-04T10:37:16+08:00

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SQUARE OF BINOMIAL
square the first term,square the last term twice the product of the first term and  last term
(x-4)² = (x)² +2(x)(-4)+(-4)²      and the product is x²-8x+16

SQUARE OF TRINOMIAL
the sum of the squares of the first,second and last terms;
twice the product of the 1st and 2nd terms;
twice the product of the first and last terms;
twice the product of the second and last terms

SUM AND DIFFERENCE (2X-5) (2X-5) = 4X²-25

CUBE OF BINOMIAL
Find the cube of the each term to get the 1st and the last terms The second term is three times the product of the square of the first term and second term The third term is three times the product of the first term and the square of the second term (x-2)3 =(x)3+3(x)2(-2)+3(x)(-2)2+(-2)3  The product is x3-6x2+12x-8