3 years ago

-|-12|-|-25-2| = ??

1 answer:

5 0

Problem : -|-12|-|-25-2|

Solution:

-|-12|-|-25-2|

-12-27
-39

NOTE: The negative outside the absolute value would be negative, so meaning that after you solve the inside absolute value equation, and you have negative outside, the number would be negative.

I hope it helps!!

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lisov135 [29]

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3 years ago

Describe the nature of the roots for this equation. 3x^2+x-5= 0

m_a_m_a [10]

Answer:

<h2>This equation has no natural roots.</h2>

Step-by-step explanation:

$3x^2+x-5=0\\\\\text{Use the quadratic formula for}\ ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{For the given equation:}\\\\a=3,\ b=1,\ c=-5\\\\b^2-4ac=1^2-4(3)(-5)=1+60=61\\\\x=\dfrac{-1\pm\sqrt{61}}{(2)(3)}=\dfrac{-1\pm\sqrt{61}}{6}\notin\mathbb{N}$