Question 178892
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{{{y=highlighted(3*(x+5))(x-2)}}}
expand 1st the highlighted, (or even the other side doesn't matter)
{{{y=(3x+15)(x-2)}}}
expand again:
First terms:{{{3x*x=highlight(3x^2)}}}
Outside Terms:{{{3x*-2=highlight(-6x)}}}
Inside Terms:{{{15*x=highlight(15x)}}}
Last terms:{{{15*-2=highlight(-30)}}}
Combine All terms:(highlighted)
{{{3x^2-6x+15x-30=highlight(3x^2+9x-30)}}}, Answer (A)
Thank you,
Jojo</pre>