Question

simplify algebraic expression

(d) (2x + 3y)^2 + (2x - 3y)^2?
only answer me D prt​

Answer 1

Answer:

8x^4 + 13xy +  9y^2 - 9x^2

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Step-by-step explanation:

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

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

(4x^2 + 6xy + 6xy + 9y^2) + (4x^2 - 6xy - 6xy - 9y^2)

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

8x^4 + 13xy +  9y^2 - 9x^2