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Daniel expanded the expression as shown. Negative 2 (Negative 8 x minus 4 y + three-fourths) = negative 10 x minus 8 y minus 1 and one-fourth What errors did he make? Select three options. The first term should be positive. The second term should be positive. The last term should be Negative 1 and one-half, not Negative 1 and one-fourth. He divided Negative 8 by Negative 2 instead of multiplying Negative 8 by Negative 2. He did not simplify the expression completely.

User Arismendy
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2 Answers

5 votes

Answer:

Option 1,2,3

Explanation:

got it right

User Lilydjwg
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3 votes

Answer:

Options A, B and C are correct.

Explanation:

The given expression is


-2\left(-8x-4y+(3)/(4)\right)

Using distributive property, we get


-2(-8x)-2(-4y)-2\left((3)/(4)\right)


16x+8y-(6)/(4)


16x+8y-(3)/(2)


16x+8y-1(1)/(2)

It is given that Daniel expanded the expression as


-2\left(-8x-4(3)/(4)\right)=-10x-8y-1(1)/(4)

The first term should be positive.

The second term should be positive.

The last term should be Negative 1 and one-half, not Negative 1 and one-fourth.

Therefore, options A, B and C are correct.

User Bhavin Patel
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