3 years ago

Write the trinomial as a square of a binomial x^2+2xy+y^2

2 answers:

3 0

Answer:

$\large\boxed{x^2+2xy+y^2=(x+y)^2}$

Step-by-step explanation:

$(x+y)^2=(x+y)(x+y)\\\\\text{Use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(x)(x)+(x)(y)+(y)(x)+(y)(y)=x^2+xy+xy+y^2=x^2+2xy+y^2$

3 0

Answer:

Step-by-step explanation:

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