Algebraic

(x² - y²) × (x² + y²) = ______

• 2x² + 2y²

• x⁴ - y⁴

• x⁴ + y⁴

• 2x⁴

Subtract x² – 3y² + 7y – 8 from 9x² – xy + y² + 5x – 3y

• 8x² – xy + 4y² + 5x - 10y – 8

• 10x² – xy - 2y² + 5x + 4y + 8

• 10x² – xy + 4y² + 5x - 10y - 8

• 8x² – xy + 4y² + 5x - 10y + 8

Find the product of (2x - 3y)(2x + 5y) using suitable identity.

• x² + 4xy - 15xy

• 2x² + 4xy - 15xy

• x² - 15xy - 15xy

• 2x² - 6xy - 15xy

The degree of a constant polynomial is 

• 1

• 2

• 3

• 0

The degree of the polynomial:  4x²y + x² - 2y² is ______

• 2

• 3

• 4

• -2

The square of x² - 2y² is ______

• x⁴ - 4x²y² + 4y⁴

• x⁴ + 4x²y² + 4y⁴

• x⁴ - 4x²y² - 4y⁴

• None of the above

Add (a - b - c) ; (b - a - c) and (c - a - b)

• (a - b - c)

• (- a - b - c)

• (a + b - c)

• (-a - b + c)

What is 11z - 12z

• 1z

• -1z

• z

• -z

Identify the numerical coefficient of 1489xyz

• 1489

• xyz

If z = 31, what is 30 − z ?

• 1

• -1

• 2

• 3