


ICSE /Class 10
Maths MCQ Based On Quadratic equations in one variable
Our free online Maths test quiz for Class 10, ICSE will assist you to improve your Maths skills on every concept in a fun interactive way.



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ICSE Class 10 Maths Quadratic equations in one variable
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use discreminent to find the nature of roots
(x+4)(x-7)=0
If Rahul's age is x years, then x(x+1) =42.
For quadratic equation \\(ax^{2}+bx+c=0\\) discriminant(D) \\(=b^{2}-4ac\\)
Check from options
\\(\\frac{1}{2}\\times 4x\\times (2x-1) =20\\)
Revise discriminant
use identity \\([a^{2}-b^{2}=(a-b)(a+b)]\\)
Use inverse operation
use discriminant to find the nature of roots

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