Polynomial Test

30r²+15r=0

• r=15 and r=2

• r=-15 and r=1/2

• r=0 and r=1/2

• r=0 and r=2

What is the first step in solving 
(x + 2)(x - 3) = 0      ?

• Plug in zero for x

• Solve for x

• FOIL

• Set each binomial factor equal to zero

Solve for the values of x:

(2x - 1)(x + 4) = 0

• x = 1/2, -4

• x = 1/2, 4

• x = 2, -4

• x = -2 4

Solve

a² - 9 = 0

• a = -1, 9

• a = 1, -9

• a = 3, -3

• a = 0, 9

Classify the polynomial according to its degree and number of terms.

-4x² + x⁶ - 4 +x³

• Second degree trinomial

• Third degree polynomial

• Sixth degree binomial

• Sixth degree polynomial

• Third degree monomial

Add

9k² + 5 - 10k² - 6

• -k²-1

• k² + 1

• 19k² + 11

• 19k² - 1

Multiply

(x - 4)²

• x² - 8x + 16

• x² - 8x - 16

• x² + 16

• x² -16

Add

(10b² + 5) + (5b² + 3b - 2)

• 15b² + 3b + 3

• 5b² + 3b + 3

• 5b² - 3b + 7

• 15b² - 3b - 3

Subtract

(2s⁷ -6s³ + 2) - (3s⁷ + 2)

• -s⁷ - 6s³

• -s⁷ - 6s³ + 4

• 5s⁷ - 6s³ + 4

• 5s⁷ - 6s³

Multiply (-3xy³)(2x²z)(yz⁴)

• -6x³y⁴z⁵

• 6x³y⁴z⁵

• -6x³y⁴z⁴

• -5x³y⁴z⁵