Question

If x= -2, then the value of the algebraic expression 3x(2x - 7 ) is __________. ​

Answer 1

We have to find the value at x = -2 for 3x(2x - 7 )

So Substitute x = - 2 then find the value

3x ( 2x -7 )

= 3(-2) [ 2(-2) -7]

= -6 [-4 -7]

= -6(-11)

= 66

So, the value for 3x(2x - 7 ) is 66 at x = -2

Know more :-

Transportations

If we transpose + after transpose it becomes -

If we tranpose - after tranpose it becomes +

If we tranpose × after tranpose it becomes ÷

If we tranpose ÷ after tranpose it becomes ×

Multiplication of signs:-

(+) ( -) = -

(-) ( +) = -

( + ) ( + ) = +

(-) (-) = +

Answer 2

Answer:

3×(-2)(2×(-2)-7)

-6(-4-7)

-6-11

-17

Step-by-step explanation:

i hope this will help you