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WINSTONCH [101]
2 years ago
14

A student used the distributive property to simplify 9(m - 4). Their answer was 9m - 4. Which answer choice best describes the s

tudent's work?
A - The student correctly simplified. The 9 was distributed to the m and now 4 will be subtracted from the product of 9 and m.

B - The student made an error. The first factor, 9, was distributed to only one of the terms inside the parentheses.

C - The student made an error. 9 should be distributed to the number 4, but not to the variable m.

D - The student made an error. 9 should be distributed to the number 4, but not to the variable m.

(Please help! D: The best answer gets to be thanked and rated!)
Mathematics
2 answers:
irinina [24]2 years ago
5 0
The answer is b, 9 was distributed to only one to m, when it needs to be distributed to both.
DanielleElmas [232]2 years ago
3 0
B

according to distributive law a(b+c) = ab + ac the nominal factor a is distributed, or separately applied, to EACH term of the binomial factor b+c

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Step-by-step explanation:

Let's solve your equation step-by-step.

4x−4+3x−2+2x+6=180

Step 1: Simplify both sides of the equation.

4x−4+3x−2+2x+6=180

4x+−4+3x+−2+2x+6=180

(4x+3x+2x)+(−4+−2+6)=180(Combine Like Terms)

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Step 2: Divide both sides by 9.

9x

9

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Answer:

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