Can you hep me solve this math question?

Question

if x = -2 then 3x^2 - 5x - 6 =?

thank for helping

Answer 1

20?

3 times -2 is -6, sqaured is 36......5 times -2 is -10, subtracted from 36 is 26.........26 minus 6 equals 20...right?

Answer 2

it may be 2

Answer 3

= 3x² - 5x - 6

= 3(- 2)² - 5(- 2) - 6

= 3(4) + 10 - 6

= 12 + 4

= 16

Answer: 16

Answer 4

x=-2

3(-2)((to the second power))-5(-2)-6=?

-6((to the second power))+10-6=?

12+10-6=?

22-6=?

16=?

16 is the answer i think

Answer 5

3((-2)^2)=12

-5*(-2)=10

12+10-6=16

Answer 6

3 * (-2)^2 - 5 * (-2) - 6 =

3 * 4 - (-10) - 6 =

12 + 10 - 6 =

16

Answer 7

3x^2-5x-6=12+10-6=16

Answer 8

use your calculator. ?Do you think that pascal broke his head only for have all the people in the world solving they equations in yahoo¿

if(x)= -2

then

3(-2)^2 - 5(-2) - 6

3(4) + 10 - 6

12 + 10 - 6

22 - 6

3x^2 - 5x - 6 = 16

if x = - 2

Answer 9

3x^2 - 5x - 6

= 3(-2)^2 - 5(-2) - 6

= 3(4) - (-10) - 6

= 12 + 10 - 6

= 22 - 6

= 16

Answer 10

16

Answer 11

=3(-2)^2-5(-2)-6

=3(4)+10-6

=16