3 years ago

I need equivalent expression to this x+x+x+2

1 answer:

5 0

The X, is added together 3 times but can just be multiplied by 3 since it’s the same variable. The 2 must remain Uncombined because it cannot join the unknown variable (x). Answer is 3x+2

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What value do the roman numerals CIX represent?

saw5 [17]

Answer:

The Roman numerals CIX equals to 109.

7 0

3 years ago

Solve the quadratic equation by using the quadratic formula. if the solution are not real, enter N/A 3x^2-7x+1=0

Vsevolod [243]

Answer:

$\displaystyle x=\frac{7\pm\sqrt{37}}{6}$

Step-by-step explanation:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\frac{-(-7)\pm\sqrt{(-7)^2-4(3)(1)}}{2(3)}\\\\x=\frac{7\pm\sqrt{49-12}}{6}\\ \\x=\frac{7\pm\sqrt{37}}{6}$