what is the evaluation of this (2v2 – 10v)2 when v = 7.

Question

Evaluate (2v² – 10v)² when v = 7. 

Answer 1

For this problem we just have to plug in 7 where ever we see v. We can rewrite this like this:

(2(7)^2  - (10*7))^2

Then we simply

(2*49) - 70)^2

(98 - 70)^2

(24)^2 = 784