Q10 of 65 Page 13

The number of roots of a quadratic equation is

As we know that the highest degree of variable in quadratic equation is two so the number of roots is two.

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8

Porna and Pijush together complete a work in 4 days. If they work separately, then the time taken by Porna would be 6 days more than the time taken by Pijaush. Let us write, by calculating, the time taken by Porna alone to complete the work.

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If the price of 1 dozen pen is reduced by ₹ 6, then 3 more pens will be got in ₹ 30. Before the reduction of price, let us calculate the price of 1 donzen pen.

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If in a ax2 + bx + c quadratic equation, then

 10

The highest power of the variable in a quadratic equation is