Question

simplify the following
(2x+3y+5)(2x+3y-5)​

Answer 1

considering (2x +3y) as a and 5 as b
we can use the identity.( a+b) (a-b) = a^2 - b ^2
.
on solving we get ,
(2x+3y)^2 -5^2



4x^2 +9y^2 +12 xy -25 .

Answer 2

Answer:

hi mate!!

Step-by-step explanation:

(2x+3y+5) (2x+3y-5)

lets say if a= 2x+3y

and b= 5

then there is a formula which can be used here

(a+b)(a-b)=a^2-b^2

there fore the answer is (2x+3y)^2 - 5^2

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