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Class 10 Maths
Quadratic Equations
Quiz 2
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$(x^2+ 1)^2– x^2= 0$ has
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four real roots
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two real roots
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one real root.
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no real roots
The roots of the equation $x^2 + x -p(p+1)=0$ where p is the constant are
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$p$, $p-1$
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$-p$, $p-1$
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$-p$,$-(p+1)$
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$p$,$-(p+1)$
Find the values of k so that quadratic equation $x^2 -4kx +k=0$ has equal roots?
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1,2
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0,1/4
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0,1
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0,3/4
Find the least positive value of p for which $x^2 + px + 4=0$ has real roots?
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4
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5
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7
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8
Match the column
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p->iii, q->i, r ->ii, s -> ii
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p->iii, q->i, r ->i, s -> ii
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p->iii, q->ii, r ->ii, s -> i
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p->iii, q->ii, r ->i, s -> ii
Find the real roots of the quadratic equation $2x^2- 3x -5 = 0$
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-1,1/2
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1/2,1
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5/2,-1
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5/2,1
Find the roots of the quadratic equation $\sqrt {2x +9} + x=13$
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20,-8
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20,8
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-20,8
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-20,-8
which of these is true?
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.3 is the root of the equation $p^2 -.9=0$
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Every quadratic equation has exactly one root.
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$x^2 + 1=0$ has real and equal roots
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Every quadratic equations has at most two roots
The roots of the quadratic equation $\frac {1}{x-3} - \frac {1}{x+5} =\frac {1}{6}$ ,$x \ne 3,-5$
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9,7
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-9,7
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7,8
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-9,6
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