Algebra Practice Question and Answer
8 Q: If (m + 1) = √n + 3, the value of $${1\over 2}\left({m^3-6m^2+12m-8\over \sqrt { n}}-n \right) \ $$ is
873 064660bde650f68f33be6d9b9
64660bde650f68f33be6d9b9- 10true
- 21false
- 32false
- 43false
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Answer : 1. "0"
Q: If x = 2 - 21/3 + 22/3, then the value of x3– 6x2 + 18x + 18 is
867 06409ce6f36c856ead79cb82a
6409ce6f36c856ead79cb82a- 122false
- 233false
- 340true
- 445false
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Answer : 3. "40 "
Q:Directions: In each of these questions, two equations (i) and (ii) are given, you have to solve both the equations and give answer accordingly.
(i) 2x² + 9x + 9 = 0
(ii) 15y² + 16y + 4 = 0
866 064d5cce8bd50dd8e2e15b3a3
64d5cce8bd50dd8e2e15b3a3(ii) 15y² + 16y + 4 = 0
- 1x > yfalse
- 2x < ytrue
- 3x ≥ yfalse
- 4x ≤ yfalse
- 5x = y or no relation can be established between x & y.false
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Answer : 2. "x < y "
Q: if 2x2 – 7x + 5 =0, then what is the value of $$x^2+{25\over 4x^2}$$
857 064d1fe6780ef1e74b4c9b6b0
64d1fe6780ef1e74b4c9b6b0- 1$$5{1\over 2}$$false
- 2$$7{1\over 4}$$true
- 3$$9{1\over 2}$$false
- 4$$9{3\over 4}$$false
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Answer : 2. "$$7{1\over 4}$$"
Q: If (x + y)3 +8 (x - y)3 = (3x+ Ay)(3x2+ Bxy+ Cy2), then the value of A+B+C is:
857 064c21c1ed3a6d4481eeb81c9
64c21c1ed3a6d4481eeb81c9- 10true
- 24false
- 32false
- 43false
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Answer : 1. "0"
Q: When a number x is divided by a divisor it is seen that the divisor = 4 times the quotient=double the remainder. If the remainder is 80 then the value of x is
840 06343d74a3a01e50b270088c7
6343d74a3a01e50b270088c7- 16480true
- 29680false
- 38460false
- 44680false
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Answer : 1. "6480"
Q: $$x+{1\over x}=2$$ and x is real, then the value of $$x^{17}+{1\over x^{19}}$$ is
836 06409cd601426f5b896a3da2d
6409cd601426f5b896a3da2d- 11false
- 20false
- 32true
- 4-2false
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Answer : 3. "2"
Q: If p, q, r are all real numbers, then (p – q)3 + (q – r)3 + (r – p)3 is equal to
836 06409cf3086fd4161467df084
6409cf3086fd4161467df084- 1(p – q) (q – r) (r – p)false
- 23(p – q) (q – r) (r – p)true
- 30false
- 41false
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