Question

(1) Find the value of the polynomial 2x
(i) x = 3
(ii) x = -1
2x + 7 using given values for x.
(iii) x = 0​

Answer 1

(i) 6

(ii) -2

(iii) 7

.....

Answer 2

Step-by-step explanation:

(i) x = 3.

2x+7. 2x

= 2×3+7. = 2×3

= 6+7. = 6

= 13

(ii) x = -1.

2x+7. 2x

= 2×-1+7. = 2×-1

= -2+7. = -2

= 5

(iii) x = 0.

2x+7. 2x

= 2×0+7. = 2×0

= 0+7. = 0

= 7