Polynomial Operations

Find the product:
(5n-8)(5n+8)

• 25n²-64

• 10n²

• 5n²+16

• 16

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x² + 5x -7

• -2x² + 11x -4

Find the difference.
(7p + 4p³ - 8) - (-3p² + 2 - 9p)

• -3p² + 4p³ -15 + 9

• 3p³ + 4p² - p + 3

• 4p³ -3p² +16p -10

• 4p³ +3p² + 16p + 10

Find the product:
(3r-4)(7r-5)

• 21r²-43r+20

• 21r+43r²+9

• 7r+12r

• r+2r

Simplify each expression. 
(6x + 4x⁴ - 3x²) + (7x⁴ + 5x² + 8x)

• 11x⁴  + 2x² + 14x

• 16x⁴  + x² + 14x

• 11x⁴  + x² + 14x

• 11x⁴  + 2x² + 10x

(6b³ + 6 - b⁴) - (8b³ - 6b⁴ + 2)

• 4b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 4

• b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 7

Simplify: 
(x² - 3x - 2) + (5x² + 10x - 5)

• 5x⁴ - 30x² + 10

• 6x² + 7x - 7

• 6x⁴+ 7x² - 7

• 4x² + 13x + 7

Multiply the Polynomials
2a²(3a - 5)-6a(8a² - 2a + 4)

• -42a³ + 2a² - 24a

• 6a³ - 10a²

• -48a³ + 12a² - 24a

• -42a³ - 22a² + 24a

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4