Question

f=5 a=4 c=3 (a) f²-4a+7b​

Answer 1

Answer:

Given that ;

f = 5

a = 4

c = 3

a ) f²-4a+7c

( 5 )²-4 ( 4 ) +7 ( 3 )

25 - 16 + 21

30

f²-4a+7b

( 5 ) ²-4 ( 4 ) + 7b

25 - 16 + 7b

9 + 7b

7b = -9

b = -9 / 7

Answer 2

f^2-4a+7b

25-16+21

30