Kolom rumus yg ditemukan

4. (3x-2)(3x+2)

(3x)² + (3.-2+3.2)x + (-2)(2)

9x² + (-6+6)x -4

9x² - 4

5. (4x-3)(4x+3)

(4x²) + (4.-3 + 4.3)x + (-3)(3)

16x² + (-12+12)x - 9

16x² - 9

6. (5x-4)(5x+4)

(5x)² + (5.-4 + 5.4)x + (-4)(4)

25x² + (-20+20)x -16

25x² - 16

7. (3x-4y)(3x+4y)

(3x)² + (3.-4y + 3.4y)x + (-4y)(4y)

9x² + (-12y+12y)x - 16y²

9x² - 16y²

8. (3x-5y)(3x+5y)

(3x)² + (3.-5y + 3.5y)x + (-5y)(5y)

9x² + (-15y+15y)x - 25y²

9x² - 25y²

9. (6x-2y)(6x+2y)

(6x)² + (6.-2y + 6.2y)x + (-2y)(2y)

36x² + (-12y+12y)x - 4y²

36x² - 4y²

10. (ax-b)(ax+b)

(ax)² + (a.-b + a.b)x + (-b)(b)

a²x² - b²

Kolom cara cepat

4. (3x-2)(3x+2)

(3x)² + (-2)(2)

9x² - 4

5. (4x-3)(4x+3)

(4x²) + (-3)(3)

16x² - 9

6. (5x-4)(5x+4)

(5x)² + (-4)(4)

25x² - 16

7. (3x-4y)(3x+4y)

(3x)² + (-4y)(4y)

9x² - 16y²

8. (3x-5y)(3x+5y)

(3x)² + (-5y)(5y)

9x² - 25y²

9. (6x-2y)(6x+2y)

(6x)² + (-2y)(2y)

36x² - 4y²

10. (ax-b)(ax+b)

(ax)² + (-b)(b)

a²x² - b²

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