Question

can you please factorise 36a²+36a+9

Answer 1

Take 9 common

9( 4a²+4a+1 )

9( 4a² + 2a +2a +1)

9( 2a+1)(2a+1)

9(2a+1)²

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Answer 2

36( a2+a)= -9

4(a square + a ) = -1

4a2 + 4a + 1 =0

a2 +a + 1/4= 0

Then u get a