Question

If x =3 and y = -2 , then y4 - 4x = ?
A. -28
B. -20
C. -4
D. 4

Answer 1

Substitute the values into the equation and evaluate.

Answer 2

is it A

Answer 3

B

Answer 4

D.4 is the ans

Answer 5

its B

Answer 6

\[\Large - 2 \cdot 4 - 4 \cdot 3 = - 8 - 12 = - 20\]

Answer 7

isn't it y^4

Answer 8

Possibly... correct notation would be helpful :-P
If it's y^4 then...\[\Large - {2^4} - 4 \cdot 3 = 16 - 12 = 4\]