Question

10. Roots of quadratic equation x2-3x = 0, will be
(a) 3
(b) 0,-3
(c) 0,3
(d) none of these​

Answer 1

Answer:

c

Step-by-step explanation:

Take x common

x (x - 3) = 0

x = 0 and x = 3

Answer 2

Roots of quadratic equation are 0,3

Option (c) is correct.

Given:

• A quadratic equation.
• ${x}^{2} - 3x = 0$

To find:

• Roots of quadratic equation will be
• (a) 3
• (b) 0,-3
• (c) 0,3
• (d) none of these

Solution:

Step 1:

Take x common from equation.

$x(x - 3) = 0$

Step 2:

Find the roots.

From both the factors either x= 0 or (x-3)=0, so as the product of both will be zero.

$\bf x = 0$

or

$x - 3 = 0$

or

$\bf x = 3$

Thus,

Roots of quadratic equation are 0,3.

Option (c) is correct.

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