## vshiroky one year ago The value of 3(x+2)^2 when x =-4 I can't remember the order

1. anonymous

remember, PEMDAS P Parentheses first E Exponents (ie Powers and Square Roots, etc.) MD Multiplication and Division (left-to-right) AS Addition and Subtraction (left-to-right)

2. vshiroky

Do I foil it?

3. anonymous

Well you already have what x is, so you would just plug x in. If you were expanding, then yes, you foil it.

4. vshiroky

I got 36 but I think it's wrong

5. anonymous

so since x = -4 $3(-4+2)^2$

6. anonymous

sorry, $3(-2)^2$

7. anonymous

$3(-2)^2 = 3(4)$

8. anonymous

$3\times4$

9. anonymous

and that equals 12

10. vshiroky

Thank you can you double check another answer for me

11. vshiroky

9y^2-4x X=-4 and y=1

12. UsukiDoll

$9y^2-4x$

13. UsukiDoll

and we have y =1, and x = -4 right?

14. vshiroky

I got 25

15. UsukiDoll

so we plug in 1 and -4 into the equation $9(1)^2-4(-4)$

16. UsukiDoll

$9(1)-(-16) \rightarrow 9+16=25$

17. UsukiDoll

I also got 25, so it seems to be the right answer.

18. vshiroky

Ty!