3 years ago

In which step did Montiah make an error?

Mathematics

2 answers:

Katen [24]3 years ago

7 0

Answer:

Step-by-step explanation:

I think you mean 3(x+8)², not 3(x+8)2. If you cannot type ², use ^ to mark the exponent: 3(x+8)^2.

3(x+8)² + 8 = 83

3(x+8)² = 75

(x+8)² = 25

x+8 = ±√25

x+8 = ±5

x = -8 ± 5 = -3, -13

elixir [45]3 years ago

4 0

Answer:

Step 2

Step-by-step explanation:

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