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Ulleksa [173]
3 years ago
5

Solve the equation by quadratic formula. Round to the nearest Tenth, if necessary

Mathematics
2 answers:
dalvyx [7]3 years ago
4 0

Answer:

x = 7 \: or \: x =  - 7.

Step-by-step explanation:

{x}^{2}  - 49 = 0

Then

{x}^{2}  = 49

So

x = 7 \: or \: x =  - 7.

patriot [66]3 years ago
4 0

Answer:

x = -7 , 7

Step-by-step explanation:

a² - b² = (a + b)(a - b)

x² - 49 = 0

x² - 7² = 0

(x + 7)(x -7) = 0

x + 7 = 0         ; x - 7 = 0

x = -7             ; x = 7

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