Question

If x= -2 and y= 12,then 2(3x3+2y2)=

Answer 1

The value of expression 2(3x^3 + 2y^2) when x = -2 and y = 12 is 528

Explanation:

To find the value of 2(3x^3 + 2y^2)

The expression is 2(3x^3+2y^2)

x = -2 and y = 12

Substitute the value of x and y in the above expression we get,

2[3(-2)^3 +2(12)^2] = 2[ (3 * (-8) ) + (2*144)]

= 2[-24 + 288] = 2 * 264 = 528

Therefore the value of expression 2(3x^3 + 2y^2) when x = -2 and y = 12 is 528

Answer 2

`528`

Explanation:

we have

`2(3x^(3) +2y^(2))`

For
`x=-2, y=12`

substitute the value of x and the value of y in the expression

`2(3(-2^(3)) +2(12^(2)))`

`2(3(-8) +2(144))`

`2(-24 +288)`

`2(264)`

`528`