Question

If a=1, b= 3 and c= -1 , find 2a² - 7a³b + c² - 6​

Answer 1

Answer:

-24

Step-by-step explanation:

Given, a=1, b= 3 and c= -1

Then,

2*1² - 7*1³*3 + -1² - 6​

2*1 - 7*1*3 + 1 - 6

2 - 21 + 1 -6

3 - 27

-24

Therefore the answer is -24

Answer 2

Answer:

-22

Step-by-step explanation:

(2a)2 = 4

-7(a)3 b = -21

(c) 2 = 1

4-21+1-6

5-27

= -22