Algebra 2 Polynomial Identities

a(b-c)+b(c-a)+c(a-b) is equal to

• ab+bc+ca

• 0

• 2(ab+bc+ca)

• none of the above

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Multiply using identity, (4x − 5)(4x + 5).

• 4x² − 25

• 4x² + 25

• 16x² + 25

• 16x² − 25

Expand (x−4)².

• x² −8x+16

• x² −8x−16

• x² +8x+16

• x² −16

(x² - y²) × (x² + y²) = ______

• 2x² + 2y²

• x⁴ - y⁴

• x⁴ + y⁴

• 2x⁴

(x - 8) ( x - 8) = ______

• x² - 64

• x² + 64

• x² - 16x + 64

• x² + 16x + 64

(a-b)^3

• a^3 -b^3-3ab(a-b)

• a^3 + b^3-3ab(a-b)

• a^3 - b^3+3ab(a-b)

• a^3 - b^3-3ab(a+b)

(a+b)^3

• a^3 - b^3+3ab(a-b)

• a^3 + b^3+3ab(a-b)

• a^3 - b^3-3ab(a-b)

• a^3 + b^3+3ab(a+b)

What will be the area of a rectangle if its length is 4a²b and breadth 3ab?

• 12a²b

• 12a³b

• 7a³b

• 12a³b²