Math, asked by prasadmurari124, 8 months ago

factorise the expression please give answer me

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Answered by anushreemodi08

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Answer:

HOPE IT HELPS!!

Step-by-step explanation:

Q1 9a²+30a+25

MULTIPLY 9 BY 25,ANSWER WILL BE 225 ,SO FACTORISE 225 SUCH THAT THE SUM OF FACTOR IS 30

= 9a²+15a+15a+25

= 3a(3a+5)+5(3a+5)

=(3a+5)(3a+5)

=(3a+5)²

Q2 (l +m)²-4lm

l²+m²+2lm-4ml

l²+m²-2ml

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