Polynomials Review

Add the polynomials

(2x+5y) + (3x-2y)

• 3x + 5y

• 5x + 3y

• 5x + 7y

• 7xy + 1xy

 

Combine like terms

(3x + 4y - 3z) - (2x - 6y + 7z)

• x + 10y - 10z

• -x +10y - 10z

• x -10y - 10z

• -x -10y - 10z

Add: (3x² + 2x + 1) + (2x² - 4x - 5) + (3x - 1)

• 5x² + 6x - 7

• 8x² - 3x - 5

• 5x² + x - 5

• 6x² + 8x + 5

Combine like terms:

8x³y + 3x²y + 4xy + 5x²y + 2xy + 7x²y

• 8x³y + 8x²y + 2xy

• 11x³y + 15x²y + 8xy

• 8x³y + 15x²y + 6xy

• 23x²y + 6xy

 

Multiply

(3n-4)(3n-4)

 

(x+7)(x+4)