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MA_775_DIABLO [31]
3 years ago
15

What expression is equivalent to x^2 - 49

Mathematics
1 answer:
Sati [7]3 years ago
7 0

Answer:

(x + 7)(x - 7)

Step-by-step explanation:

We need to factor [ x² - 49 ]

The middle number is 0 and the last number is -49.

Factoring is when we fill in the blanks for [ (x + _)(x + _) ]

We need to know what goes in the blanks, we need to know:

  • two numbers that add to get 0
  • two number that multiplied together get -49

We can try 7 and -7.

7 + (-7) = 0

7 * (-7) = -49

This works, so fill in the blanks for the factor.

(x + 7)(x + (-7))

(x + 7)(x - 7)

Best of Luck!

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