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AnnZ [28]
3 years ago
9

Which expression is equivalent to the given expression? (10c6d-5)(2c-5d4)

Mathematics
1 answer:
Vlad1618 [11]3 years ago
8 0

Answer:

120c²d - 1200cd² -10c + 100d

Step-by-step explanation:

We will first of all evalute inide the bracket then we expand it.

(10c6d-5)(2c-5d4)

=(60cd-5)(2c-20d)

= 60cd*2c -60cd*20d -5*2c +5*20d

= 120c²d - 1200cd² -10c + 100d

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Solve the system of equations using subtraction. Equation 1: 3x-2y= -2 Equation 2: 3x + y = 10 The solution is (? ,?) HURRY PLEA
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Answer:

the solution is x = 2 and y = 4 OR (2,4)

Step-by-step explanation:

From the question

Equation 1: 3x-2y= -2

Equation 2: 3x + y = 10

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3x + y = 10 - (3x -2y = -2)

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3x - 3x + y - (-2y) = 10 - (-2)

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Then,

3x = 10 - 4

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Divide both sides by 3

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2 years ago
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