Consider this equation:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]x^2 + 5 + 4x + 6 + 3x^2 + 3x = 0[/tex]

We know that we can combine the like terms and write the above equation like this:

[tex]4x^2 + 7x + 11 = 0[/tex]

Why were we able to combine the terms?

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# Why are we able to combine terms in an equation?

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