factorise: (2a+b)²+5(2a+b)+6 and explain please the best answer will be marked brainliest within 15 minutes
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let (2a+b) be y
then (2a+b)²+5(2a+b)+6=y^2+5y+6=y^2+2y+3y+6=y(y+2)+3(y+2)=(y+2)(y+3)
then put y=2a+b
answer=(2a+b+2)(2a+b+3)
then (2a+b)²+5(2a+b)+6=y^2+5y+6=y^2+2y+3y+6=y(y+2)+3(y+2)=(y+2)(y+3)
then put y=2a+b
answer=(2a+b+2)(2a+b+3)
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may it will help u buddy
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