7.1 - 7.2a Quick Check

Which of these polynomials is NOT in standard form?

Is the polynomial in standard form?

7x³ – 8x² + 9

• yes

• no

Find the Sum:

(4x³ - 5x² + 3x) + (-2x³ - x² + 6x)

• 6x³ - 4x² - 3x

• -6x³ + 4x² + 3x

• -2x³ - 6x² + 9x

• 2x³ - 6x² + 9x

2(x+3)=

• 2x+3

• 2x+5

• 2x+6

Simplify:

• -5a⁶ - 5a⁴
• -3a³  - 1a²
• -2a³  - 6a²
• 5a³ - 5a²

2x²(x+5)

• 2x²+5

• 2x²+10x²

• 2x³+5

• 2x³+10x²

10x(2x²+3x+4)

• 20x³+30x²+40x

• 20x²+30x+40

• 12x³+13x²+14x

• 12x²+13x+14

-2v(v-5)

• -2v²-10v

• -2v²+10v

• -2v-10

• -2v+10

Simplify the expression.
-3x²( 7x² - x + 4)

• -21x⁴ + 3x³ -12x²
• 7x² - x + 4 (-3x²)
• 21x⁴ + 3x³ + 12x²
• -12x² + 3x³ -21x⁴

4m(3m⁷ + 2m⁵)

• 7m⁷ + 6m⁶
• 12m⁸ + 8m⁶