Math, asked by riddhi1764, 20 days ago

MCQ

5)Pick the odd one out
a) 5a+15b ÷ 5
b) 5a + 3b
c) 5a/5 + 15b/5
d) 5a+15b/ 5

Q6: Which of the following is factor of Z²-4z-12?
a) Z+6
b) Z-6
c) Z²-12
d) None of these

Q7: Factors of “a²+b-ab-a” are
a) (a-1) (a-b)
b) (a+1) (a-b)
c) (a+b)(a-1)
d) None of them

8) If b=-1, then what is the value of b²-4b+4?

a) 1

b)

-9

c) 9

d) 7

9) If p+q = 7, pq= 2. Then p²+q² is

a) 49

b) 47

c) 45

d) 42​

Answers

Answered by krishpmlak
2

Answer:

Step-by-step explanation:

5) option ( b ) 5a + 3b

6) option ( b ) z - 6

7) option ( a ) ( a - 1 ) ( a - b )

8) option ( c ) 9

9) option ( c ) 45

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