## Problems on Algebric Expressions

Learn and practice Problems on Algebric Expressions with easy explaination and shortcut tricks. All questions and answers on Algebric Expressions covered for various Competitive Exams.

## Solve Problems:

1) If x2 +1/ x2 = 34,x+1/x is equal to

1. 3
2. 4
3. 5
4. None of these

2) The value of x in the equation: 16x +1/x = 8 is

3) The equation whose roots are 4 and 5, is

1. x2+9x-20=0
2. 0= x2+9x+20
3. x2-9x+20=0
4. x2-9x-20=0

4) The perimeter of a rectangle is 48 meters, and its area is 135 m2. The sides of the rectangle are

1. 15 m, 9m.
2. 19m, 5m.
3. 45m, 3m.
4. 27m, 5m.

5) The roots of the equation (x + 3) (x – 3) = 160 are

1. + 13
2. 13, 13
3. + 12
4. 12, 12

6) The solution of

1. 1/8
2. -1/8
3. 8/3
4. -8/3

7) If the equation 4x2+x(p+1)+1=0 has exactly two equal roots, one of the value of p is

1. 5
2. -3
3. 0
4. 3

8) A journey of 300 km takes two hours more when the speed of a care is reduced by 5km/hr. What is the original speed of the car?

1. 30
2. 40
3. 70
4. 80

9) The solution for

1. -5
2. -1
3. -3
4. 3

10) If x2+ax+b=0 and x2+bx+a=0 is double the other; a, b, c are related as

1. 2a2 = 9bc
2. 9a2 = 2bc
3. 2b2 = 9ac
4. 9b2 = 2ac