Level 1

Feed

You're one level deep. Go further into a post.

Level 2

Post Detail

Two levels deep. Tap to see comments.

Level 3

Comments

Three levels deep! Tap a comment to see a reply thread.

Level 4

Reply Thread

Four levels deep — as deep as it gets here.

হোম / বই / নবম দশম শ্রেণী / সাধারণ গণিত / বীজগণিতীয় রাশি / / সূত্র

1. \( (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3 \)
2. \( (a - b)^3 = a^3 - 3a^2b + 3ab^2 - b^3 \)
3. \( a^3 + b^3 = (a + b)(a^2 - ab + b^2) \)
4. \( a^3 - b^3 = (a - b)(a^2 + ab + b^2) \)
5. \( (a + b)^3 = a^3 + b^3 +3ab(a+b) \)
6. \( (a - b)^3 = a^3 - b^3 -3ab(a-b) \)

অনুশীলনী