1.Solve the equation, if possible. Write irrational numbers in simplest radical form. Describe the strategy you used to get your solution and tell why you chose that strategy.
x^2 - 49= 0
x^2 - 49= 0
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x^2 - 49 = 0
+49 +49
x^2 = 49
√(x^2) = √(49)
x = 7
+49 +49
x^2 = 49
√(x^2) = √(49)
x = 7
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x^2 = 49
x = ±7
To get x by itself, add 49 to both sides of the equation, then take the square root of both sides. :)
Why did someone thumbs down my answer :(
x = ±7
To get x by itself, add 49 to both sides of the equation, then take the square root of both sides. :)
Why did someone thumbs down my answer :(
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x^2 - 49 = 0
x^2 = 49 (Here, we add 49 to both sides to isolate the variable, which is x)
x = 7 (Now we take the square root of both sides)
x^2 = 49 (Here, we add 49 to both sides to isolate the variable, which is x)
x = 7 (Now we take the square root of both sides)
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7
add 49 to the right hand side, which cancels out the 49 on the left
so now u have x^2=49
square root both sides, and you have x=7
add 49 to the right hand side, which cancels out the 49 on the left
so now u have x^2=49
square root both sides, and you have x=7
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x=+ or -7