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Mathematics, 12.02.2022 09:20 mvazquez298

McKenna was asked to write the following expression in standard form. 3-5(3a+6)3βˆ’5(3a+6)

When writing the expression in standard form, McKenna made a mistake.

Step 1 2(3a+6)
Step 2 -6a+(-12)
Step 3 -6a-12
Step}\ 4 3βˆ’5(3a+6)

3+(βˆ’5)(3a+6)

βˆ’2(3a+6)

βˆ’6a+(βˆ’12)

βˆ’6aβˆ’12

a. McKenna made her first mistake in Step 2

.

b. The correct expression in standard form is

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Answers: 3

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McKenna was asked to write the following expression in standard form. 3-5(3a+6)3βˆ’5(3a+6)
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