Question

Q pensi

40² =
30² =
20² =

40² + 30² - 20² =


Wajib mengunakan cara ;)

Answer 1

Penjelasan dengan langkah-langkah:

40² = 40×40

= 1.600

30² = 30×30

= 900

20² = 400

1.600 + 900 - 400

2.500 - 400

2.100

Answer 2

=> 40² = 40 × 40

= 1.600

____________

=> 30² = 30 × 30

= 900

____________

=> 20² = 20 × 20

= 400

____________

=> 40² + 30² - 20²

=> 1.600 + 900 - 400

=> 2.500 - 400

=> 2.100

____________

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