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Mathematics 21 Online
OpenStudy (anonymous):

Short Answer. Find the following product: (x+4)^2

OpenStudy (anonymous):

\[(a+b)^2=a^2+2ab+b^2\]

OpenStudy (anonymous):

ok i get lost trying to do that

OpenStudy (anonymous):

\[x^2+2(4x)+4^2\]

OpenStudy (anonymous):

ok so would you add the x's and 4 together

OpenStudy (anonymous):

To expand the expression, square the first term, add double the product of both terms, then add the square of the last term

OpenStudy (anonymous):

x^2+8x+16

OpenStudy (anonymous):

so thats how it would look finished

OpenStudy (anonymous):

yes, notice the 8x is 2 times 4x, the 16 is 4^2

OpenStudy (anonymous):

ok

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