Question

Evaluate the expression for the given variable values.

3∣m+2n∣2−(mn)2 if m=3 and n=−5

im an idiot

Answer 1

-183

Explanation:

3 | m + 2n | 2 - ( mn ) ^ 2

Let's substitute:

3 | 3 + 2 ( -5 ) | 2 - ( ( 3 ) ( -5 ) ) ^2

3 | 3 + ( -10 ) | 2 - ( -15 ) ^ 2

3 | -7 | 2 - ( -15 x -15 )

3 ( 7 ) ( 2 ) - 225

21 ( 2 ) - 225

42 - 225

-183