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If x is equal to 5, then x squared plus 25 is equal to 50.

Q: What is x squared plus 25 if x 5?

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If x squared is not 5, then x is not equal to 5. Do not fall for the trap that the converse is "if x-squared = 25 then x = 5" since that is not a true statement.

( x^2 - 25 ) = ( x + 5 ) ( x - 5 ) <--------------------------

5 squared = 5 x 5 = 25

No.

It is the Cartesian equation of an ellipse.

Related questions

(x + 5)(x + 5)

x2 + 10y + 25 doesn't factor neatly. If that was x2 + 10x + 25, it would factor to (x + 5)(x + 5) or (X + 5)2

(x^2 - 3x + 5)(x^2 + 3x + 5)

The centre is (-5, 3)

x = 25 / 3squared + 5

x squared +6x +5 is a quadratic expression that can be factored as (x+1)(x+5)

They are +/- 5*sqrt(2)

13

If x squared is not 5, then x is not equal to 5. Do not fall for the trap that the converse is "if x-squared = 25 then x = 5" since that is not a true statement.

(5 - x)(5 + x)

x squared plus 5

( x^2 - 25 ) = ( x + 5 ) ( x - 5 ) <--------------------------