19. The exponent of bin 2-W8 is
(A) 2
(B)3
(C)-3
(D) 8.
12. A given expression is 5. For x = 2, the value of
given expression is equal to
(A) O
(B)2
(C)4
(D) 5.
20. The simplified form of 22 -x + y) + 3x + y) is
(A)2x2 + x + 5y (B) 2y2 + y + 5y
(C) x2 + x + y (D) x2-x-y.
13. IF x is equal to - 1, then - 6x2 + 5 is equal to
(A) 0
(B)-1
(C)-2
(D) -3.
21. The unlike pair of expressions is
(A) 2z2-2,2y2-2 (B) 6r) - 4y, 7x - 12y
(C) 11,22
(D) -71,-7x + 2.
14. For a -1 and b = 1, the value of a - b is
(A) 100
(B) 99
(C)0
(D)-1.
22. Area of a rectangle having length of I m and
breadth of bm is
(A) (1 + b) m? (B) Ib m2
C) (1 -b) m2
m
15. The value of m, if the value of 2x2 + x - mis
equal to 5, when x = 0, is
(A)-5
(B) 8
(C)-7
(D) 12.
23. If P= m2 - 12,- + mR=2m + 2n + m², then
P+2Q - R is equal to
(A) m2
(C) n2
(B) - m2
(D) - 12
16. The constant term in the expression
x2 - xy + y2 +6 is
Answers
Answered by
4
Answer:
19 . c -3
23. b no
15. a -5
22. a (1+b) m.
12 . c 4
20. c
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