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Elanso [62]
3 years ago
11

Suppose the expression was (12 - 3)². Would you still simplify 3² first? Explain.

Mathematics
2 answers:
Soloha48 [4]3 years ago
5 0

Answer:

No because the 2 is outside of the parentheses meaning it should be 9^2

Step-by-step explanation:

Anna35 [415]3 years ago
5 0

Answer:

No, I will not simplify 3² first.

Rather I would simplify (12-3) first, i.e., 9.

Then simplify 9² which gives the answer 81.

Step-by-step explanation:

  • (12-3)²
  • = 9²
  • = 81
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Answer:

The solution would be (6, -11)

Step-by-step explanation:

In order to solve this system by substitution, simply take the value of y in the first equation and use it in place of y in the second. This will allow you to solve for x.

x = -2y - 16

x = -2(-3x + 7) - 16

x = 6x - 14 - 16

x = 6x - 30

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Now that we have the value of x, we can find the value of y.

y = -3x + 7

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y = -11

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