Question

8. Sum ofxy, x+y and y+ xy is
(b) 3xy+2y
(a) 2xy +2x+y
(c) 2xy +x+y
(d) 2xy+x+2y
9. The value of 21b-32+ 7b-20b is
(C)8b-32
(d)28b 52
(a) 48b -32
(b) -8b-32
10. Subtract a - b from a + b the result is
(a) 2a + 2b
(d) 2a-2b
(b) 2a
(C) 2
11. Subtracting -5y from y ,the result is
(a) 4y
b) 6y
() 4y
(d)-6y
12. The value of expression 5n-2, when n=-2 is
(a)-12
(d)-8
(b) 8
(C)1
13. The value of expression 7a-4b for a = 3,b=2 is
(c) 21a-8b
(a) 13
(b) 7a-6b
(d) 29
14. When x=0, y=-1, then the value of expression 2x + 2y is
(d)
(b) 0
-2
2
(a) 4
()
15. Factors of the term 15x* in the expression 15x* -13x are
()15x,-13x
(a) 15, x, x
(b) 15,-13
(d)15​

Answer 1

Answer:

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