Question

What is the value when c =6 and d= 10 5c2 - 3d + 15​

Answer 1

165

Explanation:

Substitutet 6 for c and 10 for d in 5c^2 - 3d + 15​ .

Note that " ^ " is used here to denote exponentiation; c2 is meaningless.

Then we have 5(6)^2 - 3(10) + 15, or 180 - 30 + 15, or 165.

Answer 2

165

Explanation:

`5c^(2) -3d+15`

c = 6 and d = 10

`5c^(2)` = 5 × 6² = 5 × 36 = 180

`5c^(2)` - ( 3 d ) = 180 - ( 3 × 10 ) = 180 - 30 = 150

`5c^(2)` - 3 d ( + 15 ) = 150 + 15 = 165