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Sliva [168]
4 years ago
10

Sum of (4x^4-x2-x)+(x^4+x^3+x^2+x-1)

Mathematics
2 answers:
Flauer [41]4 years ago
6 0
<span>                -9x4 + 5x2 - 26x - 12
—————————————————————
                                3

</span>
Sedaia [141]4 years ago
6 0
<span>(4x^4-x2-x)+(x^4+x^3+x^2+x-1)
=</span><span>4x^4 - x2 - x + x^4 + x^3 + x^2 +  x- 1
=5x^4 </span>+ x^3 - 1

(x^2 and x are canceled out)...
x^2 - x^2 = 0
x -x =0
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Butyric acid ( c3h7cooh) is a weak acid . what is the ph of a 0.0250 m solution of this acid. ka = 1.5 x 10-5 (2 decimal places)
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Butyric acid is known as a weak acid, we need the concentration of [H+] formula of weak acid which is given by this equation :

[H^{+}]=\sqrt{Ka . Ma}

where [H+] is the concentration of ion H+, Ka is the weak acid ionization constant, and Ma is the acid concentration.

Since we know the concentration of H+, the pH can be calculated by using

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From question above, we know that :

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By using the equation, we can determine the concentration of [H+]

[H+] = √(Ka . Ma)

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Find more on pH at: brainly.com/question/14466719

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