Question

Find the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.

Answer 1

4 a⁴ - 2 b² + 40 :

4 * ( 2⁴) - 2  * ( 7²)  + 40 = 

4 * 16 - 2 * 49 + 40 =

64 - 98 + 40 =

-34 + 40 =

+ 6

hope this helps!