Question

factorise:-a²- (2a + 3b)²​

Answer 1

Answer:

Step-by-step explanation:

here's u r answer

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Answer 2

Answer:

-3(a+b)(a+3b)

Step-by-step explanation:-

a²-(2a+3b)² is in the form of m²- n² =( m+n)(m-n)

so now,

a²-(2a+3b)²

=>(a+2a+3b)(a-2a-3b)

=>(3a+3b)(-a-3b)

=>-3(a+b)(a+3b)

hope it helps