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Dafna1 [17]
4 years ago
14

How do i solve this ?

Mathematics
1 answer:
scoray [572]4 years ago
6 0

Answer:

Step-by-step explanation:

put thre dot on th dot on the dot

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Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

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(1) + (4)

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Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

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a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

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a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

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