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Mathematics 18 Online
OpenStudy (anonymous):

Write the expression (x+6)(x-4) as a polynomial in standard form and state the number of solutions. *PLEASE HELP ME STEP BY STEP*

pooja195 (pooja195):

oh so we need to solve it :) are you fimilar with FOIL?

pooja195 (pooja195):

OpenStudy (anonymous):

oh yes i meant

pooja195 (pooja195):

ok :) so do it :)

OpenStudy (anonymous):

ok can I ask you and you check it?

pooja195 (pooja195):

yes :)

OpenStudy (anonymous):

thank you ok one sec

OpenStudy (anonymous):

would it be x(x) 6(4) ?

pooja195 (pooja195):

not quite we need to distribute the X ro each number in the next parenthese

pooja195 (pooja195):

\[\huge~(x)(x)+(x)(−4)+(6)(x)+(6)(−4)\]

OpenStudy (anonymous):

okoh nI got it could you help me with a different one

OpenStudy (anonymous):

thank you

pooja195 (pooja195):

what is the answer to this one? :P

OpenStudy (anonymous):

kind of the same thing

pooja195 (pooja195):

Ok but lts fninsh this first

pooja195 (pooja195):

x^2−4x+6x−24 combine the likes terms : )

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

x^2 - 3x-10

pooja195 (pooja195):

good :) now we need to solve that

OpenStudy (anonymous):

ok could you show me how?

pooja195 (pooja195):

Factor it :)

pooja195 (pooja195):

|dw:1433465484892:dw|

pooja195 (pooja195):

What numbers multily to -10 and also equal -3?

OpenStudy (anonymous):

no -1 or -5?

pooja195 (pooja195):

just 5 whats the secound number its not -1

OpenStudy (anonymous):

-2

pooja195 (pooja195):

(x+5)(x-2) x+5=0 x-2=0 solve the 2 equations to find the value of x you will have 2 answers.

OpenStudy (anonymous):

-5 and 2

pooja195 (pooja195):

so 2 solutions :)

OpenStudy (anonymous):

thank you

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