Algebraic Identities

(a+b)² is equal to?

• a² + 2ab - b²

• a² + 2a + b²

• a² + 2ab + b²

• a² - 2ab + b²

(x+a)(x-a) is equal to?

• x² + a²

• x² + 2a

• x² - 2a

• x² - a²

a²-b² is equal to?

• (a - b)(a - b)

• (a + b)(b - a)

• (a + b)(a - b)

• (a^2 - b^2)

(a+b)³ is equal to?

• 3a + b

• a³+3a²b +3ab² + b³

• a³+3a²b -3ab² + b³

• 3a + 3b - a²b

(a+b+c)² is equal to?

• a² + b² + c² + 2ab + 2ac + 2bc

• a² + b² + c² - 2ab - 2ac - 2bc

• a² + b² + c² + ab + ac + bc

• a² + b² + c² + 2ab - 2ac + 2bc

Find 999²

• 998001

• 998811

• 986325

• 998199

(2x+3)(2x-3) is equal to?

• 4x² - 9

• 4x² + 9

• 4x² - 6

• 4x² + 6

(m+n)² is equal to?

• m² + n² + 2mn

• m² + n² - 2mn

• m² + n² + mn

• m² + n² + 2mn

16x² - 25y² is equal to?

• (4x - y)(x + 5y)

• (5x + 4y)(5y - 4x)

• (4x + 5y)(4x - 5y)

• (x² - y²)