5x + 6y(5x - 6y)

(5x + 6y) (5x - 6y)

(5x + 6y)²

(5x - 6y)²

(8x + 7y) (8x - 7y)

(8x + 9y) (8x - 9y)

(6x + 7y) (6x - 7y)

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

4(2x + 4) (x - 2)

4(4x + 2) (x - 2)

(2x + 4) (2x - 4)

4(x + 2) (x - 2)

(7x + 16y) (7x - 16y)

(7x + 12y)²

(12x + 7y) (12x - 7y)

(7x + 12y) (7x - 12y)

(x² + 10y) (x² - 10y)

(x + 10y) (x - 10y)

(x + 10y) (x³ - 10y)

(x³ + 10y) (x - 10y)

(13xy³ + 14w²z⁴) (13xy³ - 14w²z⁴)

(13xy² + 14w³z⁴) (13xy² - 14w³z⁴)

(13xy⁶ + 14w²z⁴) (13xy⁶ - 14w²z⁴)

(13x²y + 14w³z⁴) (13x²y - 14w³z⁴)

(11xy⁴z⁴ + 15w) (11xy²z⁴ - 15w)

(11x²y³z⁴ + 15w) (11x²y³z⁴ - 15w)

(11xy³z⁴ + 15w²) (11xy³z⁴ - 15w²)

(11xy³z + 15w²) (11xy³z³ - 15w²)

Because 51 is not a perfect cubed number.

Because 51 is not a perfect squared number.

Because 25 is not a perfect squared number.

Because we can't factor using difference of two squares if it is addition sign.

Because 4 is not a perfect cubed number.

Because 4 is not a perfect squared number.

Because 49 is not a perfect squared number.

Because we can't factor using difference of two squares if it is addition sign.

144x² - 49y²

x² + 4x - 12

100x² + 20x + 1

14x - 16

We can factor that it is addition sign.

We can factor that it is a perfect squared number (Example: x², 25, 49)

Formula: a² - b² = (a + b) (a - b)

We can factor that it is minus sign.