Question

18. 11 116 1. then the value of a bl3ab is (b) 1 8/66 (c) 26 (d) 26 (16) The value of (2-a)'+(2-b)+(2-c)-3(2 - ) (2 - b)(2 - c) when a + b + c = 6 is (a) 3 (b) 3 (c)0 (d) - 1 V.is a b = 1, (a 0,50). then the value of a-bis и (a) 1 ligo (c) 1 (d) 1 (18. If . then the value of (- 4x+1) is 2-3 (b) 0 (c) 1 (d) 3 1.The 19. The number of zeroes of the polynomial x + x - 3 - 3x is (a) 1 (b) 2 (c) 0 (d) 3 20. If (x + 2) and (x - 2) are factors of ax' + 2x - 3x2+bx - 4. then the value of a + b is (a)-7 (b) 7 (c) 14 (d) 8​

Answer 1

Step-by-step explanation:

Correct option is D)

We need to find value of

3

−

c

9

×a

12

a

6

×b

3

×c

21

=−

3

a

6−12

×b

3

×c

21−9

=−

3

a

−6

×b

3

×c

12

=−a

−2

×b×c

4

=−

a

2

bc

4

Answer 2

Answer:

option D Correct ans ☑️☑️