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Mathematics 19 Online
OpenStudy (anonymous):

Simplify expression? http://prntscr.com/910cas

pooja195 (pooja195):

Start by distributing the 3t

pooja195 (pooja195):

|dw:1447114751683:dw|

OpenStudy (anonymous):

@pooja195 so 5-3? (not sure)

pooja195 (pooja195):

When we distribute we multiply not subtract in this case its 5 x -3

OpenStudy (anonymous):

so -15?

pooja195 (pooja195):

Yes :) 3t x t = ?

OpenStudy (anonymous):

not sure, :\ what's the t for

pooja195 (pooja195):

it would be 3t^2 when we multiply a number with a variable with a variable it becomes #^2 So now we have \[\huge~\rm~ 3t^2-15t+6t^2\] From here combine like terms

OpenStudy (anonymous):

is it d?

pooja195 (pooja195):

Nope we are combining like terms 5t is different from 3t^2 and 6t^2 You have to add 6t^2+3t^2

OpenStudy (anonymous):

6t + -2

pooja195 (pooja195):

The 5 reminas the same...

pooja195 (pooja195):

6+3=9 9t^2+5t <===answer

OpenStudy (anonymous):

Okay , I see how that part works now (ty)

pooja195 (pooja195):

No problem :)

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