Question

A=2x-5y,B=4x-3y find A2-B2

Answer 1

Answer:

(2x-5y)^2-(4x-3y)^2

(4x^2+25y^2-2×2x×5y)-(16x^2+9y^2-2×4x×3y)

4x^2+25y^2-20xy-16x^2-9y^²+24xy

-12x²+16y²+4xy

Answer 2

Step-by-step explanation:

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