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TiliK225 [7]
3 years ago
10

How do you do factor x²-49?

Mathematics
1 answer:
Allisa [31]3 years ago
3 0

Answer:

(x-7)*(x+7)

Step-by-step explanation:

49 can be factored as 7*7 = 7^2

x^2 - 49

= x^2 - 7^2

You also learned that a^2 - b^2 = (a-b) * (a+b), so in this case:

x^2 - 7^2  = (x-7) * (x+7)

So x^2 - 49 factored to become (x-7)*(x+7)

Hope this help you :3

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