Question 115127
#1


{{{4b+2b-5b}}}   Start with the given expression


{{{(4b+2b-5b)}}} Group like terms


{{{b}}} Combine like terms


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#2


{{{(5y^2-4y)+(2y^2+6y-9)}}}   Start with the given expression


{{{(5y^2+2y^2)+(-4y+6y)+(-9)}}} Group like terms


{{{7y^2+2y-9}}} Combine like terms