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Mathematics 15 Online
OpenStudy (anonymous):

Find the product of (x + 5)(x − 5)

OpenStudy (anonymous):

Its Too a basics formula...but u can solve it through simple multiplication too..

OpenStudy (anonymous):

okay how

OpenStudy (anonymous):

\[(x+a)(x-a)=x ^{2}-a ^{2}\]

OpenStudy (anonymous):

im confused wat am i supposed to be *ing

OpenStudy (anonymous):

So..applying this formula..What will be \[x timesx\]

OpenStudy (anonymous):

x

OpenStudy (anonymous):

Here...U have to square x and 5....

OpenStudy (anonymous):

What will be \[5\times5\]

OpenStudy (anonymous):

10

OpenStudy (anonymous):

no...Then what is 5times2

OpenStudy (anonymous):

25

OpenStudy (anonymous):

\[5\times5=25\]

OpenStudy (anonymous):

and \[x timesx =x ^{2}\]

OpenStudy (anonymous):

by the formula what eill be the answer?

OpenStudy (anonymous):

*will

OpenStudy (anonymous):

are u there?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

x2 − 10x + 25?

OpenStudy (anonymous):

Answer will be \[x ^{2}-25\]

OpenStudy (anonymous):

Mmmm...from where 10x came?

OpenStudy (anonymous):

srry your right thnx!

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