tsheringddorji2003
tsheringddorji2003 tsheringddorji2003
  • 15-08-2020
  • Mathematics
contestada

The root of *
x^2 = 16 are

Option 1 [ +4 ]
+4
(0,4)
-4​

Respuesta :

Stephen46
Stephen46 Stephen46
  • 16-08-2020

Answer:

The roots of the equation are

- 4 and 4

Step-by-step explanation:

First rewrite the expression

That's

x² - 16

16 = 4²

So we have

x² - 4² = 0

Using the identity

a² - b² = (a + b)(a - b)

Rewrite the expression

So we have

x² - 4² = 0 is

( x + 4)( x - 4) = 0

x + 4 = 0 x - 4 = 0

x = - 4 x = 4

The roots of the equation are

- 4 and 4

Hope this helps you

Answer Link

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