Question

desenvolva o quadrado da diferença ​

Answer 1

Resposta:

$\green{resposta} \\ \red{4a {}^{2} - 20ab + 25b {}^{2}}$

Explicação passo-a-passo:

(2a-5b)^2

(2a-5b)^2

(2a)^2 -2×2a×5b+(5b)^2

(2a)^2

2^2 a^2

4a^2

(2a)^2 -2×2a×5b+(5b)^2

4a^2 -2×2a×5b+(5b)^2

(2a)^2 -2×2a×5b+(5b)^2

-2×2a×5b

-10×2ab

-20ab

(2a)^2 -2×2a×5b+(5b)^2

4a^2 -20ab+(5b)^2

(2a)^2 -2×2a×5b+(5b)^2

(5a)^2

5^2 b^2

25b^2

(2a)^2 -2×2a×5b+(5b)^2

4a^2 -20ab +25b^2

resposta

4a^2 -20ab+25b^2