Question

find the value of 5a 3 - 2b 2 - k-5 , when 9=3 , b= 2 and k=7 ​

Answer 1

Answer:

105

Step-by-step explanation:

5a 3 - 2b 2 - k-5 ,

when a=3 , b= 2 and k=7

value of expression= 5 ×3^3-2×3^2-7-5

= 5×27-18-7-5

= 135-30

= 105

so value of the expression 5a 3 - 2b 2 - k-5 , when 9=3 , b= 2 and k=7 is 105

Answer 2

Answer:

i hope you will understand this