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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 square root of 9x
4
+ 6x
2
y
2
+ y
4
.
3x
2
+ 2y
2
3x + y
3x
2
+ y
2
Q 2
: Find the sum of the roots of 12x
2
- x - 1 = 0.
-1/12
12
-12
1/12
Q 3
: Find the nature of the roots of the equation x
2
- 7x + 3 = 0.
Real and equal
Real and distinct
Complex and distinct
Q 4
: Find the square root of
(x
2
- x - 72)(x
2
+ x - 56)(x
2
- 16x + 63).
(x + 9)(x -7)(x + 8)
(x - 9)(x -7)(x - 8)
(x - 9)(x -7)(x + 8)
(x - 9)(x +7)(x + 8)
Q 5
: Find the square root of the equation 4x
4
+ 8x
3
+ 9x
2
+ 4x + 4 = 0 using undetermind method.
2x
2
+ x + 1
2x
2
+ x + 2
2x
2
- x + 2
2x
2
+ 2x + 2
Q 6
: Find the square root of 25x
4
+ 40x
3
- 24
2
- 32x + 16.
5x
2
+ 4x - 4
5x
2
- 4x + 4
5x
2
+ 4x + 4
Q 7
: f(x) = 2x
2
+ 3x + 1, then f(3x) = _____.
18x
2
+ 9x + 3
18x
2
- 9x + 1
18x
2
+ 9x + 1
Q 8
: Find the square root of 16x
4
+ 16x
3
+ 12x
2
+ 4x + 1.
4x
2
+ 2x + 1
4x
2
+ 2x - 1
4x
2
- 2x - 1
Question 9: This question is available to subscribers only!
Question 10: This question is available to subscribers only!
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