Math, asked by yogeshm76, 11 months ago

solve this equation.........

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Answers

Answered by sivaprasath
3

Answer:

x = -a . x = -b

Step-by-step explanation:

Given :

To solve for x if,

\frac{1}{a+b+x}=\frac{1}{a}+\frac{1}{b}+\frac{1}{x}

Solution :

\frac{1}{a+b+x}=\frac{1}{a}+\frac{1}{b}+\frac{1}{x}

1=(\frac{1}{a}+\frac{1}{b}+\frac{1}{x})(a+b+x)

1=\frac{(a+b+x)}{a}+\frac{(a+b+x)}{b}+\frac{(a+b+x)}{x}]

1=1+\frac{b+x}{a}+1+\frac{a+x}{b}+1+\frac{a+b}{x}

0=2+\frac{b+x}{a}+\frac{a+x}{b}+\frac{a+b}{x}

0=\frac{ax(a+x)+bx(b+x)+ab(a+b)}{abx} + 2

0=\frac{ax(a+x)+bx(b+x)+ab(a+b)+2abx}{abx}

0=ax(a+x)+bx(b+x)+ab(a+b)+2abx

0=ax^2+bx^2+a^2x+b^2x+2abx +a^2b+ab^2

0=(a+b)x^2 + (a+b)^2x +ab(a+b)

0=(a+b)[x^2+(a+b)x+ab]

0=x^2+(a+b)x+ab

0= x^2 + ax + bx + ab=(x+a)(x+b)

x=-a (or) x=-b

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