3 years ago

What number would have to be added to complete this square x^2 + 10x +?

1 answer:

Nady [450]3 years ago

5 0

I believe 25 has to be added as
(x*5)^2 = x^2 + 10x + 25

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Dafna1 [17]

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The answer is choice B: 22.52 units.

Step-by-step explanation:

We use the Pythagoras's theorem which says for a right triangle with sides $x,y$ and hypotenuse $z$ :

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