Class 10 Math All topics Quadratic Equations

Solve :

$x_{2}−7x−18=0$

Solution:

$x_{2}−7x−18=0$

$x_{2}−9x+2x−18=0$

$x(x−9)+2(x−9)=0$

$(x−9)(x+2)=0$

$x=9,−2$

Similar topics

introduction to trigonometry

functions

some applications of trigonometry

quadratic equations

polynomials

introduction to trigonometry

functions

some applications of trigonometry

quadratic equations

polynomials

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