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3 years ago

6

What is the solution to the equation?

1 answer:

Gelneren [198K]3 years ago

3 0

Answer:

Hello,

answer B

2

Step-by-step explanation:

$\dfrac{2}{x} -\dfrac{x}{x+5} =\dfrac{10}{x^2+5x} \\\\we\ suppose\ x\neq 0\ and\ x\neq -5\\\\\text{Reducing to the same denominator}\\\dfrac{2(x+5)-x^2}{x(x+5)} =\dfrac{10}{x^2+5x} \\\\Simplify\ by\ x^2+5x\\\\2x+10-x^2=10\\\\-x^2+2x=0\\\\-x(x-2)=0\\\\roots\ are\ 2 \ and\ 0\ (to\ be\ excluded)\\\\Root=2\\$

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IrinaVladis [17]

Answer:

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Step-by-step explanation:

divide by 3 on both sides

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3 years ago

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It takes Ebru 131313 minutes to bike to school. If she walks, it takes her twice as long. Ebru leaves for school at 7{:}157:157,

sdas [7]

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2 years ago

Which costs more per gallon? 5 gallons for $12.50 or 11 gallons for $26.40

Effectus [21]

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Step-by-step explanation:

If;

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3 years ago

Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

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Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

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$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

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2 years ago