Question

Evaluate x3-y2 if x=2 and y =3/4

Answer 1

137/16

Explanation:

x³-y²

(2)³-(3/4)²

8+9/16

137/16

Answer 2

`(119)/(16)`

Explanation:

Evaluate
`x^(3) -y^2` if x = 2 and y =
`(3)/(4)`

`x^(3) -y^2`

`(2)^(3) -(3)/(4)^2`

`8-(9)/(16)`

16 × 8 = 128

`(128)/(16)` = 8

`(128)/(16) -(9)/(16)` =
`(119)/(16)`