Question

– 4 vc2, when v = –7 and c = –2

Answer 1

`\boxed{112}`

Explanation:

`Evaluate - 4v {c}^(2) \: where \: v= - 7 \: and \: c= - 2 : \\ = > - 4v {c}^(2) \\ = > - 4( - 7) {( - 2)}^(2) \\ \\ {( - 2)}^(2) = 4: \\ = > - 4( - 7)4 \\ \\ - 4( - 7) = 28: \\ = > 28 * 4 = 112`