Question 326930
{{{x^2-4x = 28- 7x}}}
 {{{x^2+3x-28=0}}}
{{{(x-4)(x+7)=0}}}
Two solutions:
{{{x-4=0}}}
{{{highlight(x=4)}}}
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.
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{{{x+7=0}}}
{{{highlight( x=-7)}}}
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{{{6x(3x + 18)(x- 9) = 0}}}
Three solutions:
{{{6x=0}}}
{{{highlight_green(x=0)}}}
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{{{3x+18=0}}}
{{{3x=-18}}}
{{{highlight_green(x=-6)}}}
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{{{x-9=0}}}
{{{highlight_green( x=9)}}}