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How to complete a square for an expression then factor the trinomial

How To Complete A Square For An Expression Then Factor The Trinomial class=

Sagot :

SOLUTION

We want to complete the square for the expression

[tex]x^2+20x[/tex]

So we need to find what must be added to the expression to make it a perfect square.

We can use the formula

[tex]undefined[/tex]

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