3 years ago

Kayla squared a number x and added this result to -6.5. This gave her an answer of 42.5.

1 answer:

7 0

Answer:

7, -7

Step-by-step explanation:

x^2-6.5= 42.5 add 6.5 to both sides

x^2= 49

The square root of 49 is 7 and -7.

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