Advertisements
Advertisements
प्रश्न
Decide whether the following equation is quadratic equation or not.
m3 + 3m2 – 2 = 3m3
उत्तर
m3 + 3m2 – 2 = 3m3
m3 - 3m3 + 3m3 - 2 = 0
-2m3 + 3m2 - 2 = 0
Only one variable m.
Maximum index = 3
So, it is not a quadratic equation.
APPEARS IN
संबंधित प्रश्न
If one root of the equation `2x^2+ax+6=0` 2 then a=?
(a)7 (b)-7 (c) 7/2 (d)-7/2
If one root of the equation` 3x^2-10x+3=0 is 1/3` then the other root is
(a) `-1/3` (b) `1/3` (c)`-3` (d)`3`
If one root of `5x^2+13x+k=0` be the reciprocal of the other root then the value of k is
`(a)0 (b)1 (c)2 (d)5`
The roots of `ax^2+bx+c=0`,a≠0 are real and unequal, if `(b^2-4ac)` is
(a)>0 (b)=0 (c)<0 (d)none of these
The perimeter of a rectangle is 82m and its area is `400m^2` . The breadth of the rectangle is
(a) 25m (b)20m
(c) 16m (d)9m
The sum of two natural numbers is 8 and their product is 15., Find the numbers.
Find the solution of the quadratic equation `3sqrt3x^2+10x+sqrt3=0`
If the roots of the quadratic equation `px(x-2)+=0` are equal, find the value of p.
Find the value of k so that the quadratic equation` x^2-4kx+k=0`
has equal roots.
Solve `x^2-(sqrt3+1)x+sqrt3=0`
Solve` 4sqrt3x^2+5x-2sqrt3=0`
Decide whether the following equation is quadratic equation or not.
`"y"^2 + 1/"y" = 2`
Write the following equation in the form ax2 + bx + c= 0, then write the values of a, b, c for the equation.
3m2 = 2m2 – 9
Which one is the quadratic equation?
Choose the correct answer for the following question.
Out of the following equations, find the equation having the sum of its roots –5.
Is the following equation quadratic?
x2 - 2x + 5 = x2
Solve the following quadratic equation.
(2x + 3)2 = 25
If 3x + 5y = 9 and 5x + 3y = 7 find the value of x + y.
Two water taps together can fill a tank in `1(7)/(8)` hours. The tap with longer diameter takes 2 hours less than the tap with a smaller one to fill the tank separately. Find the time in which each tap can fill the tank separately.
A tank can be filled up by two taps in 6 hours. The smaller tap alone takes 5 hours more than the bigger tap alone. Find the time required by each tap to fill the tank separately.