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High School Mathematics
6.20 Square Roots of Algebraic Expressions Review - II

Square roots of Algebraic Expressions Review Test

Q 1: Find the value of m and n so that x4 - 6x3 + 5x2 + mx + n is perfect square.
m = 6 and n = 8
m = 12 and n = 4
m = 4 and n = 12
m = 8 and n = 6

Q 2: Find the square root of
(x2 + x - 12)(x2 - x - 20)(x2 - 8x + 15).
(x - 5)(x - 3)(x + 4)
(x - 5)(x + 3)(x + 4)
(x + 5)(x - 3)(x + 4)
(x - 5)(x - 3)(x - 4)

Q 3: Solve, (x2 - x)2 - 8(x2 - x) + 12 = 0.
-1, -2, 2 and 3
-1, 2, -2 and -3
1, -2, 2 and 3

Q 4: The difference of two symmetric expression is a ___________.
symmetric expression
not a symmetric expression

Q 5: If one root of 2x2 - (7+a)x - 15 = 0 is 5 find the value of a.
6
4
3
5

Q 6: Find the square root of (x - 2y + 3z)2 - 12z(x-2y).
x - 2y - 3z
x - 3y - 3z
x - 2y - 2z

Q 7: Find the quadratic equation whose roots are 3/4 and 1/2.
8x2 - 10x + 3
8x2 - 8x + 3
8x2 + 10x + 3
8x2 - 10x - 3

Q 8: Find the square root of 16x2 + 24xy + 9y2.
4x + 3y
4x - 3y
None of these
3x + 4y

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Question 10: This question is available to subscribers only!


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