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Tyler is using the distributive property on the expression 9 - 4(5x – 6). Here is his

work:

9 - 4(5x - 6)

9+(-4)(5x +-6)

9 +-20x +-6

3 – 20x

Mai thinks Tyler's answer is incorrect. She says, "If expressions are equivalent then

they are equal for any value of the variable. Why don't you try to substitute the same

value for x in all the equations and see where they are not equal?"

a. Find the step where Tyler made an error.

b. Explain what he did wrong.

c. Correct Tyler's work.

Respuesta :

Mibo

Step-by-step explanation:

A Tyler made mistake in the third step

B Tyler didi not multiply 4 by 6

C 9 - 20x + 24

- 20x + 15

-5 (4x - 3)
  • A . The step where Tyler made mistake in the third step
  • B . Tyler did not multiply 4 by 6.

Tyler is using the distributive property on the expression 9 - 4(5x – 6).

His work

9 - 4(5x - 6)

9+(-4)(5x +-6)

9 +-20x +-6

3 – 20x

What is the distributive property?

The distributive property states that an expression that is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.

A . Tyler made mistake in the third step

B . Tyler did not multiply 4 by 6

C. Correct steps are,

9 - 4(5x - 6)

9+(-4)(5x +-6)

9 - 20x + 24

- 20x + 15

-5 (4x - 3)

To learn more about the distributive property visit:

https://brainly.com/question/1780105

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