Question

Simplifique a expressão :

(4a-5b)ao quadrado-(3a+5b)ao quadrado-3a+5b.ao quadrado=

Answer 1

Olá!

  
    $(4a-5b)^2-(3a+5b)^2-(3a+5b)^2 = \\ \\ = 16a^2-40ab+25b^2-(9a^2+30ab+25b^2)-(9a^2+30ab+25b^2) = \\ \\ = 16a^2-18a^2-40ab-60ab-25b^2 = -2a^2-100ab-25b^2 = \\ \\ = (-1)\cdot (2a^2+100ab+25b^2)$



Bons estudos!

Answer 2

Resposta:

Olá!

 

   (4a-5b)^2-(3a+5b)^2-(3a+5b)^2 = \\ \\ = 16a^2-40ab+25b^2-(9a^2+30ab+25b^2)-(9a^2+30ab+25b^2) = \\ \\ = 
16a^2-18a^2-40ab-60ab-25b^2 = -2a^2-100ab-25b^2 = \\ \\ = (-1)\cdot (2a^2+100ab+25b^2)

Bons estudos!