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Polynomial simplification

100

3(x +4)

what is 3x + 12

200

4(5a + 2)

what is 20a + 8

300

3(4a²-5a +2)

what is 12a² -15a + 6

400

-10(2b³-3b² + 4b +5)

what is -20b³-30b²-40b-50

500

-5(2y³-3x³ + z³-9)

what is -10y³ + 15x³-5z³ +45

find the correct expression

100

2(x³ + 2x⁵+?)=2x³ +4x⁵+12

what is ?=6

200

2x²(5x⁵ + 3x⁴ -?)=10⁷ + 6x⁶ -12x³

what is ?=6

300

3a⁴(2a³ - 4a² = ?)=2x³ + 4x⁵ + 15a⁴

what is ?=5

400

2x³(4x⁵ -?x² + 9)=8x⁸ +6x⁵ + 18x³

what is ?=-3

500

b⁴(b³ + ?b²) =b⁷ + 3b⁶

what is 3b2

Order Of Operation

100

(2+30) X 9

what is 45

200

(5-2)*7-3

what is 18

300

(24/2) + 4-10

what is 6

400

(2+-2²)*5

what is -10

500

2+(2)²*5

what is 22